BLUE BIRD CORPORATION (a Delaware corporation) 4,042,650 Shares of Common Stock UNDERWRITING AGREEMENT

Exhibit 1.1

BLUE BIRD CORPORATION

(a Delaware corporation)

4,042,650 Shares of Common Stock

UNDERWRITING AGREEMENT

Dated: February 15, 2024

BLUE BIRD CORPORATION

(a Delaware corporation)

4,042,650 Shares of Common Stock

UNDERWRITING AGREEMENT

Barclays Capital Inc.

as Representatives of the several Underwriters

c/o Barclays Capital Inc.

▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇

New York, New York 10019

Ladies and Gentlemen:

Blue Bird Corporation, a Delaware corporation (the “Company”), and the person listed in Schedule B hereto (the “Selling Stockholder”), confirm their respective agreements with Barclays Capital Inc. (“Barclays”) and each of the other Underwriters named in Schedule A hereto (collectively, the “Underwriters,” which term shall also include any underwriter substituted as hereinafter provided in Section 10 hereof), for whom you are acting as representatives (in such capacity, the “Representatives”), with respect to the sale by the Selling Stockholder, of 4,042,650 shares (the “Securities”) of Common Stock, par value $0.0001 per share (“Common Stock”), and the purchase by the Underwriters, acting severally and not jointly, of the respective numbers of Securities set forth opposite such Underwriters’ names on Schedule A hereto. To the extent there are no additional Underwriters named in Schedule A other than you, the term Representatives as used herein shall mean you, as Underwriter, and the terms Representatives and Underwriters shall mean either the singular or plural as the context requires.

The Company is a holding company with its principal asset being all of the outstanding capital stock of School Bus Holdings Inc., a Delaware corporation (“School Bus Holdings” and, together with the Company, the “Blue Bird Parties”).

The Blue Bird Parties and the Selling Stockholder understand that the Underwriters propose to make a public offering of the Securities as soon as the Representatives deem advisable after this Agreement has been executed and delivered.

The Company has prepared and filed with the Securities and Exchange Commission (the “Commission”) a shelf registration statement on Form S-3 (No. 333-261858) covering the public offering and sale of certain securities, including the Securities, under the Securities Act of 1933, as amended (the “1933 Act”), and the rules and regulations promulgated thereunder (the “1933 Act Regulations”), which shelf registration statement has been declared effective by the Commission. Such registration statement, as of any time, means such registration statement as amended by any post-effective amendments thereto to such time, including the exhibits and any schedules thereto at such time, the documents incorporated or deemed to be incorporated by reference therein at such time pursuant to Item 12 of Form S-3 under the 1933 Act and the documents otherwise deemed to be a part thereof as of such time pursuant to Rule 430B

under the 1933 Act Regulations (“Rule 430B”), is referred to herein as the “Registration Statement;” provided, however, that the “Registration Statement” without reference to a time means such registration statement as amended by any post-effective amendments thereto as of the time of the first contract of sale for the Securities, which time shall be considered the “new effective date” of such registration statement with respect to the Securities within the meaning of paragraph (f)(2) of Rule 430B, including the exhibits and schedules thereto as of such time, the documents incorporated or deemed incorporated by reference therein at such time pursuant to Item 12 of Form S-3 under the 1933 Act and the documents otherwise deemed to be a part thereof as of such time pursuant to Rule 430B. Any registration statement filed pursuant to Rule 462(b) of the 1933 Act Regulations is herein called the “Rule 462(b) Registration Statement” and, after such filing, the term “Registration Statement” shall include the Rule 462(b) Registration Statement. Each preliminary prospectus used in connection with the offering of the Securities, including the documents incorporated or deemed to be incorporated by reference therein pursuant to Item 12 of Form S-3 under the 1933 Act, are collectively referred to herein as a “preliminary prospectus.” Promptly after the execution and delivery of this Agreement, the Company will prepare and file a final prospectus relating to the Securities in accordance with the provisions of Rule 424(b) under the 1933 Act Regulations (“Rule 424(b)”). The final prospectus, in the form first furnished or made available to the Underwriters for use in connection with the offering of the Securities, including the documents incorporated or deemed to be incorporated by reference therein pursuant to Item 12 of Form S-3 under the 1933 Act, are collectively referred to herein as the “Prospectus.” For purposes of this Agreement, all references to the Registration Statement, any preliminary prospectus, the Prospectus or any amendment or supplement to any of the foregoing shall be deemed to include the copy filed with the Commission pursuant to its Electronic Data Gathering, Analysis and Retrieval system (or any successor system) (“▇▇▇▇▇”).

As used in this Agreement:

“Applicable Time” means 4:30 P.M. (New York City time) on February 15, 2024 or such other time as agreed by the Company and the Representatives.

“General Disclosure Package” means any Issuer General Use Free Writing Prospectuses (as defined herein) issued at or prior to the Applicable Time, the most recent preliminary prospectus (including any documents incorporated therein by reference) that is distributed to investors prior to the Applicable Time and the information included on Schedule C-1 hereto, all considered together.

“Issuer Free Writing Prospectus” means any “issuer free writing prospectus,” as defined in Rule 433 of the 1933 Act Regulations (“Rule 433”), including without limitation any “free writing prospectus” (as defined in Rule 405 of the 1933 Act Regulations (“Rule 405”)) relating to the Securities that is (i) required to be filed with the Commission by the Company, (ii) a “road show that is a written communication” within the meaning of Rule 433(d)(8)(i), whether or not required to be filed with the Commission, or (iii) exempt from filing with the Commission pursuant to Rule 433(d)(5)(i) because it contains a description of the Securities or of the offering that does not reflect the final terms, in each case in the form filed or required to be filed with the Commission or, if not required to be filed, in the form retained in the Company’s records pursuant to Rule 433(g).

“Issuer General Use Free Writing Prospectus” means any Issuer Free Writing Prospectus that is intended for general distribution to prospective investors (other than a “bona fide electronic road show,” as defined in Rule 433), as evidenced by its being specified in Schedule C-2 hereto.

“Issuer Limited Use Free Writing Prospectus” means any Issuer Free Writing Prospectus that is not an Issuer General Use Free Writing Prospectus.

“Testing-the-Waters Communication” means any oral or written communication with potential investors undertaken in reliance on Section 5(d) or Rule 163B of the 1933 Act.

All references in this Agreement to financial statements and schedules and other information which is “contained,” “included” or “stated” (or other references of like import) in the Registration Statement, any preliminary prospectus or the Prospectus shall be deemed to include all such financial statements and schedules and other information incorporated or deemed incorporated by reference in the Registration Statement, any preliminary prospectus or the Prospectus, as the case may be, prior to the execution and delivery of this Agreement; and all references in this Agreement to amendments or supplements to the Registration Statement, any preliminary prospectus or the Prospectus shall be deemed to include the filing of any document under the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder (collectively, the “1934 Act”), incorporated or deemed to be incorporated by reference in the Registration Statement, such preliminary prospectus or the Prospectus, as the case may be, at or after the execution and delivery of this Agreement.

SECTION 1. Representations and Warranties.

(a) Representations and Warranties by the Blue Bird Parties. Each Blue Bird Party severally represents and warrants to each Underwriter as of the date hereof, the Applicable Time and the Closing Time (as defined herein), and agrees with each Underwriter, as follows:

(i) Registration Statement and Prospectuses. The Company meets the requirements for use of Form S-3 under the 1933 Act. Each of the Registration Statement and any post-effective amendment thereto has become effective under the 1933 Act. No stop order suspending the effectiveness of the Registration Statement or any post-effective amendment thereto has been issued under the 1933 Act, no order preventing or suspending the use of any preliminary prospectus or the Prospectus has been issued and no proceedings for any of those purposes have been instituted or are pending or, to the knowledge of the Blue Bird Parties, contemplated. The Company has complied with each request (if any) from the Commission for additional information.

Each of the Registration Statement and any post-effective amendment thereto, at the time of its effectiveness, each deemed effective date with respect to the Underwriters pursuant to Rule 430B(f)(2) under the 1933 Act Regulations, the Applicable Time and the Closing Time, complied and will comply in all material respects with the requirements of the 1933 Act and the 1933 Act Regulations. Each preliminary prospectus, the Prospectus and any amendment or supplement thereto, at the time each was filed with the Commission, and, in each case, at the Applicable Time and the Closing Time, complied and will comply in all material respects with the requirements of the 1933 Act and the 1933 Act Regulations. Each preliminary prospectus delivered to the Underwriters for use in connection with the offering and the Prospectus was or will be identical to the electronically transmitted copies thereof filed with the Commission pursuant to ▇▇▇▇▇, except to the extent permitted by Regulation S-T.

The documents incorporated or deemed to be incorporated by reference in the Registration Statement, any preliminary prospectus and the Prospectus, when they became effective or at the time they were or hereafter are filed with the Commission, complied and will comply in all material respects with the requirements of the 1934 Act and the rules and regulations of the Commission under the 1934 Act (the “1934 Act Regulations”).

(ii) Accurate Disclosure. Neither the Registration Statement nor any amendment thereto, at its effective time, on the date hereof or at the Closing Time, contained, contains or will contain an untrue statement of a material fact or omitted, omits or will omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading. At the Applicable Time, neither (A) the General Disclosure Package nor (B) any individual Issuer Limited Use Free Writing Prospectus, when considered together with the General Disclosure Package, included, includes or will include an untrue statement of a material fact or omitted, omits or will omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. Neither the Prospectus nor any amendment or supplement thereto, as of its issue date, at the time of any filing with the Commission pursuant to Rule 424(b), at the Closing Time, included, includes or will include an untrue statement of a material fact or omitted, omits or will omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. The documents incorporated or deemed to be incorporated by reference in the Registration Statement, the General Disclosure Package and the Prospectus, at the time the Registration Statement became effective or when such documents incorporated by reference were filed with the Commission, as the case may be, when read together with the other information in the Registration Statement, the General Disclosure Package or the Prospectus, as the case may be, did not and will not include an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading.

The representations and warranties in this subsection shall not apply to statements in or omissions from the Registration Statement (or any amendment thereto), the General Disclosure Package or the Prospectus (or any amendment or supplement thereto) made in reliance upon and in conformity with written information furnished to the Company by any Underwriter through the Representatives expressly for use therein. For purposes of this Agreement, the only information so furnished shall be the information in the second, third and fourth paragraphs under the heading “Underwriting–Price Stabilization, Short Positions and Penalty Bids” and the information under the heading “Underwriting–Electronic Distribution,” in each case contained in the Prospectus (collectively, the “Underwriter Information”).

(iii) Issuer Free Writing Prospectuses. No Issuer Free Writing Prospectus conflicts or will conflict with the information contained in the Registration Statement or the Prospectus, including any document incorporated by reference therein, and any preliminary or other prospectus deemed to be a part thereof that has not been superseded or modified. Any offer that is a written communication relating to the Securities made prior to the initial filing of the Registration Statement by the Company or any person acting on its behalf (within the meaning, for this paragraph only, of Rule 163(c) of the 1933 Act Regulations) has been filed with the Commission in accordance with the exemption provided by Rule 163 under the 1933 Act Regulations (“Rule 163”) and otherwise complied with the requirements of Rule 163, including without limitation the legending requirement, to qualify such offer for the exemption from Section 5(c) of the 1933 Act provided by Rule 163.

(iv) Testing-the-Waters Materials. The Company has not engaged in, or authorized any other person to engage in, any Testing-the-Waters Communication.

(v) Company Not Ineligible Issuer. At the time of filing the Registration Statement and any post-effective amendment thereto, at the earliest time thereafter that the Company or another offering participant made a bona fide offer (within the meaning of Rule 164(h)(2) of the 1933 Act Regulations) of the Securities and at the date hereof, the Company was not and is not an “ineligible issuer,” as defined in Rule 405, without taking account of any determination by the Commission pursuant to Rule 405 that it is not necessary that the Company be considered an ineligible issuer.

(vi) [Reserved].

(vii) Independent Accountants. The accountants who certified the financial statements and supporting schedules included in the Registration Statement, the General Disclosure Package and the Prospectus are independent public accountants as required by the 1933 Act, the 1933 Act Regulations, the 1934 Act, the 1934 Act Regulations and the Public Company Accounting Oversight Board.

(viii) Financial Statements; Non-GAAP Financial Measures. The financial statements included or incorporated by reference in the Registration Statement, the General Disclosure Package and the Prospectus, together with the related schedules and notes, present fairly in all material respects the financial position of the Company and School Bus Holdings and their consolidated subsidiaries at the dates indicated and the statement of operations, stockholders’ equity and cash flows of the Company and School Bus Holdings and their consolidated subsidiaries for the periods specified; said financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”) applied on a consistent basis throughout the periods involved; the supporting schedules, if any, present fairly in accordance with GAAP the information required to be stated therein; the selected financial data and the summary financial information included in the Registration Statement, the General Disclosure Package and the Prospectus present fairly in all material respects the information shown therein and have been compiled on a basis consistent with that of the audited financial statements included therein; and all disclosures contained in the Registration Statement, the General Disclosure Package or the Prospectus, or incorporated by reference therein, regarding “non-GAAP financial measures” (as such term is defined by the rules and regulations of the Commission) comply with Regulation G of the 1934 Act and Item 10 of Regulation S-K of the 1933 Act, to the extent applicable. The interactive data in eXtensible Business Reporting Language incorporated by reference in the Registration Statement, the General Disclosure Package and the Prospectus fairly presents the information called for in all material respects and has been prepared in accordance with the Commission’s rules and guidelines applicable thereto.

(ix) No Material Adverse Change in Business. Except as otherwise stated therein, since the date of the latest audited financial statements of the Company included or incorporated by reference into the Registration Statement, the General Disclosure Package or the Prospectus, (A) there has been no material adverse change in the condition, financial or otherwise, or in the earnings, business affairs or business prospects of the Blue Bird Parties and their subsidiaries considered as one enterprise (a “Material Adverse Effect”), (B) there have been no transactions entered into by any Blue Bird Party or any of their subsidiaries, other than those in the ordinary course of business, which are material with respect to the Blue Bird Parties and their subsidiaries considered as one enterprise and (C) there has been no dividend or distribution of any kind declared, paid or made by any Blue Bird Party on any class of its capital stock.

(x) Good Standing of the Blue Bird Parties. Each of the Blue Bird Parties has been duly organized and is validly existing as a corporation in good standing under the laws of the State of Delaware and has corporate power and authority to own, lease and operate their respective properties and to conduct their respective businesses as described in the Registration Statement, the General Disclosure Package and the Prospectus and to enter into and perform their respective obligations under this Agreement; and each Blue Bird Party is duly qualified as a foreign corporation to transact business and is in good standing in each other jurisdiction (to the extent the concept of “good standing” is applicable to each such jurisdiction) in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure so to qualify or to be in good standing would not, reasonably be expected to, singly or in the aggregate, result in a Material Adverse Effect.

(xi) Good Standing of Subsidiaries. Each “significant subsidiary” (as such term is defined in Rule 1-02 of Regulation S-X) of each Blue Bird Party (each, a “Subsidiary” and, collectively, the “Subsidiaries”) has been duly organized and is validly existing in good standing under the laws of the jurisdiction of its incorporation or organization (to the extent the concept of “good standing” is applicable in each such jurisdiction), has corporate or similar power and authority to own, lease and operate its properties and to

conduct its business as described in the Registration Statement, the General Disclosure Package and the Prospectus and is duly qualified to transact business and is in good standing in each jurisdiction in which such qualification is required (to the extent the concepts of “qualification to transact business” and “good standing” are applicable in each such jurisdiction), whether by reason of the ownership or leasing of property or the conduct of business, except where the failure to so qualify or to be in good standing would not reasonably be expected to, singly or in the aggregate, result in a Material Adverse Effect. Except as otherwise disclosed in the Registration Statement, the General Disclosure Package and the Prospectus, all of the issued and outstanding capital stock of each Subsidiary has been duly authorized and validly issued, is fully paid and non-assessable and is owned directly or indirectly by the applicable Blue Bird Party, directly or through subsidiaries, free and clear of any security interest, mortgage, pledge, lien, encumbrance, claim or equity. None of the outstanding shares of capital stock of any Subsidiary were issued in violation of the preemptive or similar rights of any securityholder of such Subsidiary. The only subsidiaries of the Company are the subsidiaries listed on Exhibit 21 to the Registration Statement.

(xii) Capitalization. The authorized, issued and outstanding shares of capital stock of the Company as set forth or incorporated by reference in the Registration Statement, the General Disclosure Package and the Prospectus (except for subsequent issuances, if any, pursuant to this Agreement, pursuant to reservations, agreements or employee benefit plans referred to in the Registration Statement, the General Disclosure Package and the Prospectus or pursuant to the exercise of convertible securities, options referred to in the Registration Statement, the General Disclosure Package and the Prospectus); the outstanding shares of capital stock of the Company and School Bus Holdings, including the Securities to be purchased by the Underwriters from the Selling Stockholder, have been duly authorized and validly issued and are fully paid and non-assessable; none of the outstanding shares of capital stock of the Company or School Bus Holdings, including the Securities to be purchased by the Underwriters from the Selling Stockholder, were issued in violation of any pre-emptive or similar rights of any securityholder of the Company.

(xiii) Authorization of this Agreement. This Agreement has been duly authorized, executed and delivered by the Company and School Bus Holdings.

(xiv) Description of Securities. The Common Stock conforms in all material respects to all statements relating thereto contained in the Registration Statement, the General Disclosure Package and the Prospectus and such description conforms in all material respects to the rights set forth in the instruments defining the same. To the knowledge of the Company, no holder of Securities will be subject to personal liability solely by reason of being such a holder.

(xv) Registration Rights. There are no persons with registration rights or other similar rights to have any securities registered for sale pursuant to the Registration Statement or otherwise registered for sale or sold by the Blue Bird Parties under the 1933 Act pursuant to this Agreement, other than those rights that have been disclosed in the Registration Statement, the General Disclosure Package and the Prospectus and have been waived.

(xvi) Absence of Violations, Defaults and Conflicts. Neither the Blue Bird Parties nor any of their subsidiaries is (A) in violation of its charter, by-laws or similar organizational document, (B) in default in the performance or observance of any obligation, agreement, covenant or condition contained in any contract, indenture, mortgage, deed of trust, loan or credit agreement, note, lease or other agreement or instrument to which any Blue Bird Party or any of their subsidiaries is a party or by which it or any of them is bound or to which any of the properties or assets of any Blue Bird Party or any of their subsidiaries is subject (collectively, “Agreements and Instruments”), except for such defaults that would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect, or (C) in violation of any law, statute, rule, regulation, judgment, order, writ or decree of any arbitrator, court, governmental body, regulatory body, administrative agency or other authority, body or agency having jurisdiction over any Blue

Bird Party or any of their subsidiaries or any of their respective properties, assets or operations (each, a “Governmental Entity”), except for such violations that would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect. The execution, delivery and performance of this Agreement and the consummation of the transactions contemplated herein and in the Registration Statement, the General Disclosure Package and the Prospectus (including the sale of the Securities as described herein and therein) and compliance by each Blue Bird Party with its obligations hereunder have been duly authorized by all necessary corporate action and do not and will not, whether with or without the giving of notice or passage of time or both, conflict with or constitute a breach of, or default under, or result in the creation or imposition of any lien, charge or encumbrance upon any properties or assets of any Blue Bird Party or any of their subsidiaries pursuant to, the Agreements and Instruments (except for such conflicts, breaches, defaults or liens, charges or encumbrances that would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect), nor will such action result in any violation of the provisions of the charter, by-laws or similar organizational document of any Blue Bird Party or any of their subsidiaries or any law, statute, rule, regulation, judgment, order, writ or decree of any Governmental Entity (except for such violations of any law, statute, rule regulation, judgment, order, writ or decree of any Governmental Entity that would not, singly or in the aggregate, be reasonably be expected to result in a Material Adverse Effect).

(xvii) Absence of Labor Dispute. Except as disclosed in the Registration Statement, the General Disclosure Package and the Prospectus, no labor dispute with the employees of any Blue Bird Party or any of their subsidiaries exists; and neither the Blue Bird Parties nor any of their subsidiaries are aware of any existing labor disturbance by the employees of any Blue Bird Party or any of their subsidiaries’ principal suppliers, manufacturers, customers or contractors, which, in either case, would reasonably be expected to result in a Material Adverse Effect.

(xviii) Absence of Proceedings. Except as disclosed in the Registration Statement, the General Disclosure Package and the Prospectus, there is no action, suit, proceeding, inquiry or investigation before or brought by any Governmental Entity now pending or, to the knowledge of the Blue Bird Parties, threatened, against or affecting any Blue Bird Party or any of their subsidiaries, which, if determined adversely to any Blue Bird Party, would reasonably be expected to result in a Material Adverse Effect, or which may reasonably be expected to materially and adversely affect their respective properties or assets or the consummation of the transactions contemplated in this Agreement or the performance by the Blue Bird Parties of their obligations hereunder; and the aggregate of all pending legal or governmental proceedings to which any Blue Bird Party or any of their subsidiaries is a party or of which any of their respective properties or assets is the subject which are not described in the Registration Statement, the General Disclosure Package and the Prospectus, including ordinary routine litigation incidental to the business, could not be reasonably expected to result in a Material Adverse Effect.

(xix) Accuracy of Exhibits. There are no contracts or documents which are required to be described in the Registration Statement, the General Disclosure Package or the Prospectus or to be filed as exhibits to the Registration Statement which have not been so described and filed as required.

(xx) Absence of Further Requirements. No filing with, or authorization, approval, consent, license, order, registration, qualification or decree of, any Governmental Entity is necessary or required for the performance by the Blue Bird Parties of their obligations hereunder, in connection with the offering, sale of the Securities hereunder or the consummation of the transactions contemplated by this Agreement, except (A) such as have been already obtained or as may be required under the 1933 Act, the 1933 Act Regulations, the rules of the Nasdaq Global Market (the “Exchange”), state securities laws or the rules of the Financial Industry Regulatory Authority, Inc. (“FINRA”) and (B) such as which the failure to obtain would not, singly or in the aggregate, materially impair the power of the Blue Bird Parties to perform their obligations under this Agreement.

(xxi) Possession of Licenses and Permits. Each Blue Bird Party and its subsidiaries possess such permits, licenses, approvals, consents and other authorizations (collectively, “Governmental Licenses”) issued by the appropriate Governmental Entities necessary to conduct the business now operated by them, except where the failure so to possess would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect. Each Blue Bird Party and its subsidiaries are in compliance with the terms and conditions of all Governmental Licenses, except where the failure so to comply would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect. All of the Governmental Licenses are valid and in full force and effect, except when the invalidity of such Governmental Licenses or the failure of such Governmental Licenses to be in full force and effect would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect. Neither the Blue Bird Parties nor any of their subsidiaries have received any notice of proceedings relating to the revocation or modification of any Governmental Licenses which, singly or in the aggregate, if the subject of an unfavorable decision, ruling or finding, would reasonably be expected to result in a Material Adverse Effect.

(xxii) Title to Property. Each Blue Bird Party and its subsidiaries have good and marketable title to all real property owned by them and good title to all other properties owned by them, in each case, free and clear of all mortgages, pledges, liens, security interests, claims, restrictions or encumbrances of any kind except such as (A) are described in the Registration Statement, the General Disclosure Package and the Prospectus or (B) do not, singly or in the aggregate, be reasonably be expected to result in a Material Adverse Effect; and all of the leases and subleases material to the business of the Blue Bird Parties and their subsidiaries, considered as one enterprise, and under which any Blue Bird Party or any of their subsidiaries holds properties described in the Registration Statement, the General Disclosure Package or the Prospectus, are in full force and effect, and neither the Blue Bird Parties nor any of their subsidiaries have received notice of any material claim of any sort that has been asserted by anyone adverse to the rights of any Blue Bird Party or any of their subsidiaries under any of the leases or subleases mentioned above, or affecting or questioning the rights of such Blue Bird Party or such subsidiary to the continued possession of the leased or subleased premises under any such lease or sublease, except as would not, singly or in the aggregate, be reasonably expected to result in a Material Adverse Effect.

(xxiii) Possession of Intellectual Property. Each Blue Bird Party and its subsidiaries own, possess or have the right to use, or can acquire on reasonable terms, patents, patent rights, licenses, inventions, copyrights, know-how (including trade secrets and other unpatented and/or unpatentable proprietary or confidential information, systems or procedures), trademarks, service marks, trade names or other intellectual property (collectively, “Intellectual Property”) necessary to carry on the business now operated by them, except where the failure so to own, possess, have the right to use or ability to so acquire would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect. Neither the Blue Bird Parties nor any of their subsidiaries have received written notice of, and the Blue Bird Parties are not otherwise aware of, any action, suit or proceeding (A) involving a claim of infringement of, misappropriation or other violation of any Intellectual Property against the Blue Bird Parties or any of their subsidiaries or (B) which would render any Intellectual Property owned by the Blue Bird Parties’ business invalid or unenforceable, and which action, suit or proceeding (if the subject of any unfavorable decision, ruling or finding), singly or in the aggregate, would reasonably be expected to result in a Material Adverse Effect.

(xxiv) Environmental Laws. Except as described in the Registration Statement, the General Disclosure Package and the Prospectus or would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect, (A) neither the Blue Bird Parties nor any of their subsidiaries is in violation of any federal, state, local or foreign statute, law, rule, regulation, ordinance, code, legally binding policy, or rule of common law or any judicial or administrative interpretation thereof, including any judicial or administrative order, consent, decree or judgment, relating to pollution or protection of human health (as related to exposure to Hazardous Materials (defined below)), the environment (including, without limitation, ambient air, surface water, groundwater, land surface or subsurface strata) or wildlife, including,

without limitation, laws and regulations relating to the release or threatened release of chemicals, pollutants, contaminants, wastes, toxic substances, hazardous substances, petroleum or petroleum products, asbestos-containing materials or mold (collectively, “Hazardous Materials”) or to the manufacture, processing, distribution, use, treatment, storage, disposal, transport or handling of Hazardous Materials (collectively, “Environmental Laws”), (B) each Blue Bird Party and its subsidiaries have all permits, authorizations and approvals required for their respective operations under any applicable Environmental Laws and are each in compliance with their requirements, (C) there are no pending or, to the knowledge of the Blue Bird Parties, threatened administrative, regulatory or judicial actions, suits, demands, demand letters, claims, liens, notices of noncompliance or violation, investigations or proceedings relating to any Environmental Law against any Blue Bird Party or any of their subsidiaries and (D) to the knowledge of the Blue Bird Parties, there are no events or circumstances that would reasonably be expected to form the basis of an order for clean-up or remediation, or an action, suit or proceeding by any private party or Governmental Entity, against or affecting any Blue Bird Party or any of their subsidiaries relating to Hazardous Materials or any Environmental Laws.

(xxv) Accounting Controls and Disclosure Controls. Each Blue Bird Party and its subsidiaries, on a consolidated basis, maintain an effective system of internal control over financial reporting (as defined under Rules 13-a15 and 15d-15 under the 1934 Act Regulations) and a system of internal accounting controls sufficient to provide reasonable assurances that (A) transactions are executed in accordance with management’s general or specific authorization, (B) transactions are recorded as necessary to permit preparation of financial statements in conformity with GAAP and to maintain accountability for assets, (C) access to assets is permitted only in accordance with management’s general or specific authorization, (D) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences, and (E) the interactive data in eXtensible Business Reporting Language included or incorporated by reference in the Registration Statement, the General Disclosure Package and the Prospectus fairly presents the information called for in all material respects and is prepared in accordance with the Commission’s rules and guidelines applicable thereto. Except as described in the Registration Statement, the General Disclosure Package and the Prospectus, since the end of the Company’s most recent audited fiscal year, there has been (1) no material weaknesses in the Blue Bird Parties’ internal control over financial reporting (whether or not remediated) and (2) no change in the Blue Bird Parties’ internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the Blue Bird Parties’ internal control over financial reporting.

Each Blue Bird Party and its subsidiaries, on a consolidated basis, maintain an effective system of disclosure controls and procedures (as defined in Rule 13a-15 and Rule 15d-15 under the 1934 Act Regulations) that are designed to ensure that information required to be disclosed by the Company in the reports that it files or submits under the 1934 Act is recorded, processed, summarized and reported, within the time periods specified in the Commission’s rules and forms, and is accumulated and communicated to the Company’s management, including its principal executive officer or officers and principal financial officer or officers, as appropriate, to allow timely decisions regarding disclosure.

(xxvi) Compliance with the ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act. There is and has been no failure on the part of the Company or, to the best knowledge of the Company, any of the Company’s directors or officers, in their capacities as such, to comply in all material respects with any provision of the ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act of 2002, as amended, and the rules and regulations promulgated in connection therewith (the “▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act”), including Section 402 related to loans and Sections 302 and 906 related to certifications.

(xxvii) Payment of Taxes. Each Blue Bird Party and its subsidiaries have paid all federal, state, local and foreign taxes and filed all tax returns required by law to be paid or filed through the date hereof, except for cases in which the failure to pay would not reasonably be expected to have a Material Adverse Effect or

assessments against which appeals have been or will be promptly taken and as to which adequate reserves have been provided. Except as otherwise disclosed in the Registration Statement, the General Disclosure Package or the Prospectus, there are no known actual or proposed material tax deficiencies or assessments that have been, or would reasonably be expected to be, asserted against any Blue Bird Party or its subsidiaries.

(xxviii) Insurance. The Blue Bird Parties and their subsidiaries carry or are entitled to the benefits of insurance, with financially sound and reputable insurers, or self-insurance in such amounts and covering such risks as is generally maintained by companies of established repute engaged in the same or similar business, and all such insurance is in full force and effect. The Blue Bird Parties have no reason to believe that they or any of their subsidiaries will not be able (A) to renew their existing insurance coverage as and when such policies expire or (B) to obtain comparable coverage from similar institutions as may be necessary or appropriate to conduct their business as now conducted and at a cost that would not reasonably be expected to result in a Material Adverse Effect. Neither the Blue Bird Parties nor any of their subsidiaries have been denied any material insurance coverage which they have sought or for which they have applied.

(xxix) Investment Company Act. Neither Blue Bird Party is required, nor, upon the sale of the Securities as herein contemplated, will be required, to register as an “investment company” under the Investment Company Act of 1940, as amended.

(xxx) Absence of Manipulation. Neither the Blue Bird Parties nor any of their controlled affiliates have taken, nor will the Blue Bird Parties or any of their controlled affiliates take, directly or indirectly, any action which is designed, or would reasonably be expected, to cause or result in, or which constitutes, the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Securities or to result in a violation of Regulation M under the 1934 Act.

(xxxi) Foreign Corrupt Practices Act. None of the Blue Bird Parties nor any of their subsidiaries nor, to the knowledge of the Blue Bird Parties, any director, officer, agent, employee, affiliate or other person acting on behalf of any of the foregoing, is aware of or has taken any action, directly or indirectly, that would result in a violation by such persons of the Foreign Corrupt Practices Act of 1977, as amended, and the rules and regulations thereunder (the “FCPA”), including, without limitation, making use of the mails or any means or instrumentality of interstate commerce corruptly in furtherance of an offer, payment, promise to pay or authorization of the payment of any money, or other property, gift, promise to give, or authorization of the giving of anything of value to any “foreign official” (as such term is defined in the FCPA) or any foreign political party or official thereof or any candidate for foreign political office, in contravention of the FCPA, and the Company, School Bus Holdings and, to the knowledge of the Blue Bird Parties, each of their affiliates have conducted their businesses in compliance with the FCPA and have instituted and maintain policies and procedures designed to ensure, and which are reasonably expected to continue to ensure, continued compliance therewith.

(xxxii) Money Laundering Laws. The operations of the Company and School Bus Holdings and their subsidiaries are and have been conducted at all times in compliance with financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the money laundering statutes of all applicable jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any Governmental Entity (collectively, the “Money Laundering Laws”); and no action, suit or proceeding by or before any Governmental Entity involving the Company, School Bus Holdings or any of their subsidiaries with respect to any Money Laundering Laws is pending or, to the best knowledge of the Blue Bird Parties, threatened.

(xxxiii) OFAC. None of the Company, School Bus Holdings or any of their subsidiaries or, to the knowledge of the Blue Bird Parties, any director, officer, agent, employee, affiliate or representative of the Company, School Bus Holdings or any of their subsidiaries, is an individual or entity (“Person”) currently the subject or target of any sanctions administered or enforced by the U.S. Government, including, without limitation, the U.S. Department of the Treasury’s Office of Foreign Assets Control, the United Nations Security Council, the European Union or His Majesty’s Treasury, or other relevant sanctions authority (collectively, “Sanctions”), nor is the Company, School Bus Holdings or any of their subsidiaries located, organized or resident in a country or territory that is the subject of Sanctions (being, as of the date of this Agreement, the Crimea region of Ukraine, the Donetsk People’s Republic, the Luhansk People’s Republic, Cuba, Iran, North Korea, and Syria).

(xxxiv) ERISA and Employment Law Compliance. None of the following events has occurred or exists: (i) except as would not reasonably be expected to result in a Material Adverse Effect, a failure to fulfill the obligations, if any, under the minimum funding standards of Section 302 of the Employee Retirement Income Security Act of 1974, as amended, and the regulations and published interpretations thereunder (collectively, “ERISA”), with respect to a Plan (as defined below) determined without regard to any waiver of such obligations or extension of any amortization period; (ii) an audit or investigation by the U.S. Internal Revenue Service, the U.S. Department of Labor, the Pension Benefit Guaranty Corporation or any other federal, state or foreign governmental or regulatory agency with respect to the employment or compensation of employees by any Blue Bird Party or any of its subsidiaries that might reasonably be expected, singly or in the aggregate, to result in a Material Adverse Effect; or (iii) any breach of any contractual obligation, or any violation of law or applicable qualification standards, with respect to the employment or compensation of employees by any Blue Bird Party or any of its subsidiaries that might reasonably be expected, singly or in the aggregate, to result in a Material Adverse Effect. Except as would not reasonably be expected, singly or in the aggregate, to result in a Material Adverse Effect, none of the following events has occurred or is reasonably likely to occur: (i) a failure to maintain and operate a Plan in compliance with its terms and the requirements of any applicable statutes, orders, rules and regulations, including ERISA and the Internal Revenue Code of 1986, as amended, and the regulations and published interpretations thereunder (collectively, the “Code”); (ii) a non-exempt prohibited transaction, within the meaning of Section 406 of ERISA or Section 4975 of the Code; (iii) a “reportable event”, within the meaning of Section 4043(c) of ERISA, other than those events as to which notice is waived; (iv) a material increase in the amount of contributions required to be made to Plans, singly or in the aggregate in the current fiscal year of the Company and its subsidiaries compared to the amount of such contributions made in the Company’s most recently completed fiscal year; (v) a material increase in the “accumulated post-retirement benefit obligations” (within the meaning of Statement of Financial Accounting Standards 106) of the Company and its subsidiaries compared to the amount of such obligations in the Company’s most recently completed fiscal year; (vi) any event or condition giving rise to a liability under Title IV of ERISA (other than timely contributions to the Pension Benefit Guaranty Corporation in the ordinary course and without default); or (vii) the filing of a claim by one or more employees or former employees of any Blue Bird Party or any of its subsidiaries related to its or their employment. For purposes of this paragraph, the term “Plan” means a plan (within the meaning of Section 3(3) of ERISA) with respect to which any Blue Bird Party or any of its subsidiaries may have any liability.

(xxxv) Lending Relationship. Except as disclosed in the Registration Statement, the General Disclosure Package and the Prospectus, the Blue Bird Parties do not have any material lending or other relationship with any bank or lending affiliate of any Underwriter.

(xxxvi) Related Party Transactions. There are no business relationships or related party transactions involving any Blue Bird Party or any of their subsidiaries or, to the knowledge of the Blue Bird Parties, any other person that are required to be described in the Registration Statement, the General Disclosure Package and the Prospectus that have not been described as required.

(xxxvii) Statistical and Market-Related Data. Any statistical and market-related data included in the Registration Statement, the General Disclosure Package or the Prospectus are based on or derived from sources that the Blue Bird Parties believe, after reasonable inquiry, to be reliable and accurate in all material respects, and, to the extent required, the Blue Bird Parties have obtained the written consent to the use of such data from such sources.

(xxxviii) Cybersecurity. Except as would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect, to the knowledge of the Blue Bird Parties (A) there has been no security breach (or related incident) or unauthorized access or disclosure of or relating to any Blue Bird Parties’ or any of their subsidiaries’ information technology and computer systems, networks, hardware, software, data and databases (including, to the extent applicable, the personally identifiable or confidential data and information of their respective customers, employees, suppliers, vendors and any third-party data maintained, processed or stored by any Blue Bird Party and any of their subsidiaries, and, to the knowledge of the Blue Bird Parties, any such data processed or stored by third parties on behalf of any Blue Bird Party and any of their subsidiaries), equipment or technology (collectively, “IT Systems and Data”); (B) neither the Blue Bird Parties nor their subsidiaries have been notified in writing of, and the Blue Bird Parties do not have knowledge of, any event or condition that would reasonably be expected to result in any security breach (or related incident), or unauthorized access or disclosure relating to their IT Systems and Data; and (C) each Blue Bird Party and its subsidiaries have implemented controls, policies, procedures, and technological safeguards to maintain and protect the integrity, operation and security of their IT Systems and Data that are reasonably consistent with industry standards and practices or required by applicable laws or statutes. Except as would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect, to the knowledge of the Blue Bird Parties, the Blue Bird Parties and their subsidiaries are presently in compliance with all applicable laws or statutes and all applicable internal policies and contractual obligations relating to the privacy and security of IT Systems and Data and to the protection of such IT Systems and Data from unauthorized use, access or misappropriation.

(xxxix) Government Contracts. (A) With respect to each Government Contract (defined as any contract, purchase order, delivery order, task order, basic ordering agreement, pricing agreement, letter contract, grant, cooperative agreement, other transaction authority agreement, or change order between the Blue Bird Parties or any of their subsidiaries, on one hand, and any Governmental Entity or any prime contractor or subcontractor (at any tier) of any Governmental Entity, on the other hand) and any proposals, offers, or bids submitted for or in pursuit of any Government Contract, during the three (3) years prior to the date hereof: (i) neither the Blue Bird Parties, nor any of their subsidiaries nor any of their respective Principals (as the term is defined in 48 C.F.R. § 2.101), nor, to the knowledge of the Blue Bird Parties, any current employee is or has been suspended or debarred, proposed for debarment or suspension, declared ineligible or determined non-responsive from holding, performing or bidding on any Government Contract, and no such proceeding regarding suspension, debarment, ineligibility or non-responsibility has been commenced or threatened; (ii) no Governmental Entity nor prime contractor, or subcontractor has notified the Blue Bird Parties or any of their subsidiaries, as applicable, in writing of any breach or violation of any applicable law, regulation, or rule; (iii) neither the Blue Bird Parties nor any of their subsidiaries has received any written notice of termination for default or cause, cure notice, or show cause notice; (iv) neither the Blue Bird Parties nor any of their subsidiaries has received any written notice of any audits or investigations by any Governmental Entity; (v) neither the Blue Bird Parties nor any of their subsidiaries has been notified of any other claim or other dispute relating to any Government Contract; (vi) neither the Blue Bird Parties nor any of their subsidiaries has conducted an internal investigation nor made any voluntary or mandatory disclosure to any Governmental Entity with respect to any irregularity, misstatement, significant overpayment, or actual, alleged or potential violation of applicable law, regulation, or rule; (vii) neither the Blue Bird Parties nor any of their subsidiaries has had any Government Contract terminated by any Governmental Entity or any other Person for default or failure to perform; and (viii) the Blue Bird Parties and each of their subsidiaries have complied with all laws, regulations, and rules applicable to Government

Contracts and the terms and conditions of (including all representations and certifications relating to) each Government Contract; except for such failure or notification as could not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect and (B) neither the Blue Bird Parties nor any of their subsidiaries holds a facility security clearance as defined in the National Industrial Security Program Operating Manual (32 C.F.R. Part 117) or any similar security clearance issued by any U.S. or non-U.S. Governmental Entity.

(xl) Uyghur Forced Labor Prevention Act. The operations of neither the Blue Bird Parties nor any of their subsidiaries involve the sale or import into the United States of any goods, wares, articles, or merchandise mined, produced, or manufactured wholly or in part in the Xinjiang Uyghur Autonomous Region of the People’s Republic of China, or produced by an entity on the Department of Homeland Security’s UFLPA Entity List. In the past five (5) years, none of the goods the Blue Bird Parties or any of their subsidiaries have sold or imported into the United States have been seized by Customs and Border Patrol as being contrary to Section 307 of the Tariff Act of 1930 due to the use of forced labor in China in the production of such goods, and neither the Blue Bird Parties nor their subsidiaries have been the subject of any fines, penalties, enforcement actions, litigation, or other liability in relation to the use of forced labor or alleged forced labor in the supply chain of the products it sells or imports into the United States.

(b) Representations and Warranties by the Selling Stockholder. The Selling Stockholder, represents and warrants to each Underwriter as of the date hereof, as of the Applicable Time and as of the Closing Time, and agrees with each Underwriter, as follows:

(i) Accurate Disclosure. Neither the General Disclosure Package nor the Prospectus or any amendments or supplements thereto includes any untrue statement of a material fact or omits to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the representations and warranties set forth in this Section 1(b)(i) apply only to statements or omissions made in reliance upon and in conformity with information relating to the Selling Stockholder furnished in writing by or on behalf of the Selling Stockholder expressly for use in the Registration Statement, the General Disclosure Package, the Prospectus or any other Issuer Free Writing Prospectus or any amendment or supplement thereto, which consists solely of the name and number of shares of the Selling Stockholder contained in the Selling Stockholder table (the “Selling Stockholder Information”); the Selling Stockholder is not prompted to sell the Securities to be sold by the Selling Stockholder hereunder by any information concerning the Company or any subsidiary of the Company which is not set forth in the General Disclosure Package or the Prospectus.

(ii) Organization. The Selling Stockholder has been duly organized and is validly existing and in good standing under the laws of its respective jurisdiction.

(iii) Authorization of this Agreement. This Agreement has been duly authorized, executed and delivered by or on behalf of the Selling Stockholder.

(iv) Non-Contravention. The execution and delivery of this Agreement and the sale and delivery of the Securities to be sold by the Selling Stockholder and the consummation of the transactions contemplated herein and compliance by the Selling Stockholder with its obligations hereunder do not and will not, whether with or without the giving of notice or passage of time or both, conflict with or constitute a breach of, or default under, or result in the creation or imposition of any lien, charge or encumbrance upon the Securities to be sold by the Selling Stockholder or any property or assets of the Selling Stockholder pursuant to any contract, indenture, mortgage, deed of trust, loan or credit agreement, note, license, lease or other agreement or instrument to which the Selling Stockholder is a party or by which the Selling Stockholder may be bound, or to which any of the property or assets of the Selling Stockholder is subject, nor will such action result in any violation of the provisions of the charter or by-laws or other organizational instrument of the Selling Stockholder, if applicable, or any applicable treaty, law, statute, rule, regulation, judgment, order, writ or decree of any government, government instrumentality or court, domestic or foreign, having jurisdiction over the Selling Stockholder or any of its properties.

(v) Valid Title. The Selling Stockholder has, and at the Closing Time will have, valid title to the Securities to be sold by the Selling Stockholder free and clear of all security interests, claims, liens, equities or other encumbrances and the legal right and power, and all authorization and approval required by law, to enter into this Agreement and to sell, transfer and deliver the Securities to be sold by the Selling Stockholder or a valid security entitlement in respect of such Securities.

(vi) Delivery of Securities. Upon payment of the purchase price for the Securities to be sold by the Selling Stockholder pursuant to this Agreement, delivery of such Securities, as directed by the Underwriters, to Cede & Co. (“Cede”) or such other nominee as may be designated by The Depository Trust Company (“DTC”) (unless delivery of such Securities is unnecessary because such Securities are already in possession of Cede or such nominee), registration of such Securities in the name of Cede or such other nominee (unless registration of such Securities is unnecessary because such Securities are already registered in the name of Cede or such nominee) and the crediting of such Securities on the books of DTC to securities accounts (within the meaning of Section 8-501(a) of the UCC) of the Underwriters (assuming that neither DTC nor any such Underwriter has notice of any “adverse claim,” within the meaning of Section 8-105 of the Uniform Commercial Code then in effect in the State of New York (“UCC”), to such Securities), (A) under Section 8-501 of the UCC, the Underwriters will acquire a valid “security entitlement” in respect of such Securities and (B) no action (whether framed in conversion, replevin, constructive trust, equitable lien, or other theory) based on any “adverse claim,” within the meaning of Section 8-102 of the UCC, to such Securities may be asserted against the Underwriters with respect to such security entitlement; for purposes of this representation, the Selling Stockholder may assume that when such payment, delivery and crediting occur, (1) such Securities will have been registered in the name of Cede or another nominee designated by DTC, in each case on the Company’s share registry in accordance with its certificate of incorporation, bylaws and applicable law, (2) DTC will be registered as a “clearing corporation,” within the meaning of Section 8-102 of the UCC, (3) appropriate entries to the accounts of the several Underwriters on the records of DTC will have been made pursuant to the UCC, (4) to the extent DTC, or any other securities intermediary which acts as “clearing corporation” with respect to the Securities, maintains any “financial asset” (as defined in Section 8-102(a)(9) of the UCC in a clearing corporation pursuant to Section 8-111 of the UCC, the rules of such clearing corporation may affect the rights of DTC or such securities intermediaries and the ownership interest of the Underwriters, (5) claims of creditors of DTC or any other securities intermediary or clearing corporation may be given priority to the extent set forth in Section 8-511(b) and 8-511(c) of the UCC and (6) if at any time DTC or other securities intermediary does not have sufficient Securities to satisfy claims of all of its entitlement holders with respect thereto then all holders will share pro rata in the Securities then held by DTC or such securities intermediary.

(vii) Absence of Manipulation. The Selling Stockholder has not taken, and will not take, directly or indirectly, any action which is designed to or which constituted or would be expected to cause or result in stabilization or manipulation of the price of any security of any Blue Bird Party to facilitate the sale or resale of the Securities.

(viii) Absence of Further Requirements. No filing with, or consent, approval, authorization, order, registration, qualification or decree of any arbitrator, court, governmental body, regulatory body, administrative agency or other authority, body or agency, domestic or foreign, is necessary or required for the performance by the Selling Stockholder of its obligations hereunder or in connection with the sale and delivery of the Securities hereunder or the consummation of the transactions contemplated by this Agreement, except (A) such as have been already obtained or as may be required under the 1933 Act, the 1933 Act Regulations, the 1934 Act, the 1934 Act Regulations, the rules of the Exchange, state securities laws or the rules of FINRA and (B) such as which the failure to obtain would not, singly or in the aggregate, materially impair the power of the Selling Stockholder to perform its obligations under this Agreement.

(ix) No Registration or Other Similar Rights. Except as described in the Registration Statement, the General Disclosure Package and the Prospectus, the Selling Stockholder does not have any registration or other similar rights to have any equity or debt securities registered for sale by the Company under the Registration Statement or included in the offering contemplated by this Agreement.

(x) No Free Writing Prospectuses. The Selling Stockholder has not prepared, or had prepared on its behalf, or used or referred to any “free writing prospectus” (as defined in Rule 405), and has not distributed any written materials in connection with the offer or sale of the Securities.

(xi) OFAC / FCPA / Anti-Money Laundering Laws. The Selling Stockholder will not directly or indirectly use the proceeds of the sale of the Securities, or lend, contribute or otherwise make available such proceeds to any subsidiaries, joint venture partners or other Person, (i) to fund any activities of or business with any Person, or in any country or territory, that, at the time of such funding, is the subject of Sanctions or in any other manner that will result in a violation by any Person (including any Person participating in the transaction, whether as underwriter, advisor, investor or otherwise) of Sanctions or (ii) in furtherance of an offer, payment, promise to pay or authorization of the payment or giving of any money or anything of value to any Person in contravention of the FCPA or any Money Laundering Laws.

(xii) Taxes. The Selling Stockholder represents and warrants that it is a “United States person” within the meaning of Section 7701(a)(30) of the Code and shall deliver to the Underwriters prior to the Closing Time a properly completed and executed IRS Form W-9.

(xiii) No Association with FINRA. Neither the Selling Stockholder nor any of his, her or its, as applicable, affiliates directly, or indirectly through one or more intermediaries, controls, or is controlled by, or is under common control with any member firm of FINRA or is a person associated with a member (within the meaning of the FINRA By-Laws) of FINRA.

(c) Officer’s Certificates. Any certificate signed by any officer of the Blue Bird Parties or any of their subsidiaries and delivered to the Representatives or to counsel for the Underwriters shall be deemed a representation and warranty by such Blue Bird Party or subsidiary to each Underwriter as to the matters covered thereby; and any certificate signed by or on behalf of the Selling Stockholder as such and delivered to the Representatives or to counsel for the Underwriters shall be deemed a representation and warranty by the Selling Stockholder to each Underwriter as to the matters covered thereby.

SECTION 2. Sale and Delivery to Underwriters; Closing.

(a) The Securities. On the basis of the representations and warranties herein contained and subject to the terms and conditions herein set forth, the Selling Stockholder, agrees to sell that number of Securities set forth opposite the name of the Selling Stockholder on Schedule B hereto to each Underwriter and each Underwriter, severally and not jointly, agrees to purchase from the Selling Stockholder, at the price per share set forth in Schedule A hereto, that number of Securities opposite such Underwriter’s name on Schedule A hereto, plus any additional number of Securities which such Underwriter may become obligated to purchase pursuant to the provisions of Section 10 hereof, subject, in each case, to such adjustments among the Underwriters as the Representatives in their sole discretion shall make to eliminate any sales or purchases of fractional shares.

(b) [Reserved].

(c) Payment. Payment of the purchase price for, and delivery of certificates or security entitlements for, the Securities shall be made at the offices of ▇▇▇▇▇▇ & ▇▇▇▇▇▇▇ LLP, ▇▇▇▇ ▇▇▇▇▇▇ ▇▇ ▇▇▇ ▇▇▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇, or at such other place as shall be agreed upon by the Representatives, the Company and the Selling Stockholder, at 9:00 A.M. (New York City time) on the second (third, if the pricing occurs after 4:30 P.M. (New York City time) on any given day) business day after the date hereof (unless postponed in accordance with the provisions of Section 10 hereof), or such other time not later than ten business days after such date as shall be agreed upon by the Representatives, the Company and the Selling Stockholder (such time and date of payment and delivery being herein called the “Closing Time”).

Payment shall be made to the Selling Stockholder by wire transfer of immediately available funds to the bank accounts designated by the Selling Stockholder against delivery to the Representatives for the respective accounts of the Underwriters of certificates or security entitlements for the Securities to be purchased by them. It is understood that each Underwriter has authorized the Representatives, for its account, to accept delivery of, receipt for, and make payment of the purchase price for, the Securities that it has agreed to purchase. Barclays, individually and not as Representative of the Underwriters, may (but shall not be obligated to) make payment of the purchase price for the Securities to be purchased by any Underwriter whose funds have not been received by the Closing Time, but such payment shall not relieve such Underwriter from its obligations hereunder.

SECTION 3. Covenants of the Company and the Selling Stockholder. Each of the Company and the Selling Stockholder covenants with each Underwriter as follows:

(a) Compliance with Securities Regulations and Commission Requests. The Company, subject to Section 3(b) hereof, will comply with the requirements of Rule 430B, and will notify the Representatives immediately, and confirm the notice in writing, (i) when any post-effective amendment to the Registration Statement shall become effective or any amendment or supplement to the Prospectus shall have been filed, (ii) of the receipt of any comments from the Commission, (iii) of any request by the Commission for any amendment to the Registration Statement or any amendment or supplement to the Prospectus, including any document incorporated by reference therein or for additional information, (iv) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or any post-effective amendment thereto or of any order preventing or suspending the use of any preliminary prospectus or the Prospectus, or of the suspension of the qualification of the Securities for offering or sale in any jurisdiction, or of the initiation or threatening of any proceedings for any of such purposes or of any examination pursuant to Section 8(d) or 8(e) of the 1933 Act concerning the Registration Statement and (v) if the Company becomes the subject of a proceeding under Section 8A of the 1933 Act in connection with the offering of the Securities. The Company will effect all filings required under Rule 424(b) in the manner and within the time period required by Rule 424(b) (without reliance on Rule 424(b)(8)) and will take such steps as it deems necessary to ascertain promptly whether the form of prospectus transmitted for filing under Rule 424(b) was received for filing by the Commission and, in the event that it was not, it will promptly file such prospectus. The Company will make every reasonable effort to prevent the issuance of any stop order, prevention or suspension and, if any such order is issued, to obtain the lifting thereof at the earliest possible moment. The Company has paid the required Commission filing fees relating to the Securities within the time required by Rule 456(a) under the 1933 Act Regulations.

(b) Continued Compliance with Securities Laws. The Company will comply with the 1933 Act, the 1933 Act Regulations, the 1934 Act and the 1934 Act Regulations so as to permit the completion of the distribution of the Securities as contemplated in this Agreement and in the Registration Statement, the General Disclosure Package and the Prospectus. If at any time when a prospectus relating to the Securities is (or, but for the exception afforded by Rule 172 of the 1933 Act Regulations (“Rule 172”), would be) required by the 1933 Act to be delivered in connection with sales of the Securities, any event shall occur or

condition shall exist as a result of which it is necessary, in the opinion of counsel for the Underwriters or for the Company, to (i) amend the Registration Statement in order that the Registration Statement will not include an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading, (ii) amend or supplement the General Disclosure Package or the Prospectus in order that the General Disclosure Package or the Prospectus, as the case may be, will not include any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein not misleading in the light of the circumstances existing at the time it is delivered to a purchaser or (iii) amend the Registration Statement or amend or supplement the General Disclosure Package or the Prospectus, as the case may be, in order to comply with the requirements of the 1933 Act or the 1933 Act Regulations, the Company will promptly (A) give the Representatives notice of such event, (B) prepare any amendment or supplement as may be necessary to correct such statement or omission or to make the Registration Statement, the General Disclosure Package or the Prospectus comply with such requirements and, a reasonable amount of time prior to any proposed filing or use, furnish the Representatives with copies of any such amendment or supplement and (C) file with the Commission any such amendment or supplement; provided that the Company shall not file or use any such amendment or supplement to which the Representatives or counsel for the Underwriters shall reasonably object. The Company will furnish to the Underwriters such number of copies of such amendment or supplement as the Underwriters may reasonably request. The Company has given the Representatives notice of any filings made pursuant to the 1934 Act or 1934 Act Regulations within 48 hours prior to the Applicable Time; the Company will give the Representatives notice of its intention to make any such filing from the Applicable Time to the Closing Time and will furnish the Representatives with copies of any such documents a reasonable amount of time prior to such proposed filing, as the case may be, and will not file or use any such document to which the Representatives or counsel for the Underwriters shall reasonably object in a timely manner.

(c) Delivery of Registration Statements. The Company has furnished or will deliver to the Representatives and counsel for the Underwriters, if requested, without charge, conformed copies of the Registration Statement as originally filed and each amendment thereto (including exhibits filed therewith or incorporated by reference therein and documents incorporated or deemed to be incorporated by reference therein) and conformed copies of all consents and certificates of experts, and will also deliver to the Representatives, without charge, a conformed copy of the Registration Statement as originally filed and each amendment thereto (without exhibits) for each of the Underwriters. The copies of the Registration Statement and each amendment thereto furnished to the Underwriters will be identical to the electronically transmitted copies thereof filed with the Commission pursuant to ▇▇▇▇▇, except to the extent permitted by Regulation S-T.

(d) Delivery of Prospectuses. The Company has delivered to each Underwriter, without charge, as many copies of each preliminary prospectus as such Underwriter reasonably requested, and the Company hereby consents to the use of such copies for purposes permitted by the 1933 Act. The Company will furnish to each Underwriter, without charge, during the period when a prospectus relating to the Securities is (or, but for the exception afforded by Rule 172, would be) required to be delivered under the 1933 Act, the Company shall deliver to each Underwriter, without charge, such number of copies of the Prospectus (as amended or supplemented) as such Underwriter may reasonably request. The Prospectus and any amendments or supplements thereto furnished to the Underwriters will be identical to the electronically transmitted copies thereof filed with the Commission pursuant to ▇▇▇▇▇, except to the extent permitted by Regulation S-T.

(e) Blue Sky Qualifications. The Company will use its best efforts, in cooperation with the Underwriters, to qualify the Securities for offering and sale under the applicable securities laws of such states and other jurisdictions (domestic or foreign) as the Representatives may designate and to maintain such qualifications in effect so long as required to complete the distribution of the Securities; provided,

however, that the Company shall not be obligated to file any general consent to service of process or to qualify as a foreign corporation or as a dealer in securities in any jurisdiction in which it is not so qualified or to subject itself to taxation in respect of doing business in any jurisdiction in which it is not otherwise so subject.

(f) Rule 158. The Company will timely file such reports pursuant to the 1934 Act as are necessary in order to make generally available (which may be satisfied by filing with the Commission pursuant to ▇▇▇▇▇) to its securityholders as soon as practicable an earnings statement for the purposes of, and to provide to the Underwriters the benefits contemplated by, the last paragraph of Section 11(a) of the 1933 Act.

(g) Listing. The Company will use its best efforts to effect and maintain the listing of the Common Stock (including the Securities) on the Exchange.

(h) Restriction on Sale of Securities. During a period of 45 days from the date of the Prospectus, the Company will not, without the prior written consent of the Representatives, (i) directly or indirectly, offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase or otherwise transfer or dispose of any shares of Common Stock or any securities convertible into or exercisable or exchangeable for Common Stock or file any registration statement under the 1933 Act with respect to any of the foregoing or (ii) enter into any swap or any other agreement or any transaction that transfers, in whole or in part, directly or indirectly, the economic consequence of ownership of the Common Stock, whether any such swap or transaction described in clause (i) or (ii) above is to be settled by delivery of Common Stock or other securities, in cash or otherwise without the prior written consent of the Representatives; provided that confidential or non-public submissions to the Commission of any registration statements under the 1933 Act may be made if (w) no public announcement of such confidential or non-public submission shall be made, (x) if any demand was made for, or any right exercised with respect to, such registration of shares of Stock or securities convertible, exercisable or exchangeable into Stock, no public announcement of such demand or exercise of rights shall be made, (y) the Company shall provide written notice at least three business days prior to such confidential or non-public submission to the Representatives and (z) no such confidential or non-public submission shall become a publicly filed registration statement during the 60-day restricted period. The foregoing sentence shall not apply to (A) any shares of Common Stock issued by the Company upon the exercise of an option or warrant or the conversion of a security outstanding on the date hereof and referred to in the Registration Statement, the General Disclosure Package and the Prospectus, (B) any shares of Common Stock issued and options to purchase Common Stock or other equity incentive awards granted pursuant to existing employee benefit, equity incentive or employee stock purchase plans of the Company referred to in the Registration Statement, the General Disclosure Package and the Prospectus, (C) the filing of any registration statement on Form S-8 or any successor form thereto with respect to the registration of securities to be offered under any plan referred to in clause (B) of this Section 3(h), (D) any shares of Common Stock issued pursuant to any non-employee director stock plan or dividend reinvestment plan referred to in the Registration Statement, the General Disclosure Package and the Prospectus, (E) the establishment of a trading plan pursuant to Rule 10b5-1 under the Exchange Act, provided that such plan does not provide for the transfer of shares of Common Stock during the 60-day restricted period and the establishment of such plan does not require or otherwise result in any public filing or other public announcement of such plan during the 60-day restricted period and (F) the issuance of up to 5% of the outstanding shares of Common Stock in connection with the acquisition of the assets of, or a majority or controlling portion of the equity of, or a joint venture with another entity in connection with the acquisition by the Blue Bird Parties or any of its subsidiaries of such entity; provided in the case of this clause (F) the transferee of such shares agrees to be bound in writing to the restrictions set forth in this Section 3(h).

(i) Reporting Requirements. The Company, during the period when a Prospectus relating to the Securities is (or, but for the exception afforded by Rule 172, would be) required to be delivered under the 1933 Act, will file all documents required to be filed with the Commission pursuant to the 1934 Act within the time periods required by the 1934 Act and 1934 Act Regulations.

(j) Issuer Free Writing Prospectuses. Each of the Company and the Selling Stockholder agrees that, unless it obtains the prior written consent of the Representatives, it will not make any offer relating to the Securities that would constitute an Issuer Free Writing Prospectus or that would otherwise constitute a “free writing prospectus,” or a portion thereof, required to be filed by the Company with the Commission or retained by the Company under Rule 433; provided that the Representatives will be deemed to have consented to the Issuer Free Writing Prospectuses listed on Schedule C-2 hereto and any “road show that is a written communication” within the meaning of Rule 433(d)(8)(i) that has been reviewed by the Representatives. Each of the Company and the Selling Stockholder represents that it has treated or agrees that it will treat each such free writing prospectus consented to, or deemed consented to, by the Representatives as an “issuer free writing prospectus,” as defined in Rule 433, and that it has complied and will comply with the applicable requirements of Rule 433 with respect thereto, including timely filing with the Commission where required, legending and record keeping. If at any time following issuance of an Issuer Free Writing Prospectus there occurred or occurs an event or development as a result of which such Issuer Free Writing Prospectus conflicted or would conflict with the information contained in the Registration Statement, any preliminary prospectus or the Prospectus or included or would include an untrue statement of a material fact or omitted or would omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances existing at that subsequent time, not misleading, the Company will promptly notify the Representatives and will promptly amend or supplement, at its own expense, such Issuer Free Writing Prospectus to eliminate or correct such conflict, untrue statement or omission.

(k) Certification Regarding Beneficial Owners. The Selling Stockholder will deliver to the Representatives, on or before the date of execution of this Agreement, a properly completed and executed Certification Regarding Beneficial Owners of Legal Entity Customers, together with copies of identifying documentation, and the Selling Stockholder undertakes to provide such additional supporting documentation as the Representatives may reasonably request in connection with the verification of the foregoing certification.

SECTION 4. Payment of Expenses.

(a) Expenses. The Blue Bird Parties will pay or cause to be paid all expenses incident to the performance of their obligations under this Agreement, including (i) the preparation, printing and filing of the Registration Statement (including financial statements and exhibits) as originally filed and each amendment thereto, (ii) the preparation, printing and delivery to the Underwriters of copies of each preliminary prospectus, each Issuer Free Writing Prospectus and the Prospectus and any amendments or supplements thereto and any costs associated with electronic delivery of any of the foregoing by the Underwriters to investors, (iii) the preparation and delivery of the certificates or security entitlements for the Securities to the Underwriters, including any stock or other transfer taxes and any stamp or other duties payable upon the sale or delivery of the Securities to the Underwriters and the initial resale thereof by the Underwriters, (iv) the fees and disbursements of the Company’s counsel and accountants, (v) the qualification of the Securities under securities laws in accordance with the provisions of Section 3(e) hereof, including filing fees and the reasonable fees and disbursements of counsel for the Underwriters in connection therewith and in connection with the preparation of the Blue Sky Survey and any supplement thereto up to an aggregate of $5,000, (vi) the fees and expenses of any transfer agent or registrar for the Securities, (vii) the costs and expenses of the Company relating to investor presentations on any “road show” undertaken in connection with the marketing of the Securities, including without limitation, expenses

associated with the production of road show slides and graphics, fees and expenses of any consultants engaged in connection with the road show presentations, travel and lodging expenses of the representatives and officers of the Company and any such consultants and the cost of any aircraft and other transportation chartered in connection with the roadshow, (viii) the filing fees incident to, and the reasonable fees and disbursements of counsel to the Underwriters in connection with the review by FINRA of the terms of the sale of the Securities (provided that the reimbursement obligation for such fees and expenses of counsel for the Underwriters shall not exceed, in the aggregate, $20,000), and (ix) the fees and expenses incurred in connection with the listing of the Securities on the Exchange.

(b) Expenses of the Selling Stockholder. The Company will pay the expenses incident to the performance of the Selling Stockholder’s obligations under, and the consummation of the transactions contemplated by, this Agreement, including (i) the fees and expenses of legal counsel of the Selling Stockholder, (ii) any stamp and other duties and stock and other transfer taxes, if any, payable upon the sale of the Securities to the Underwriters and their transfer between the Underwriters pursuant to an agreement between such Underwriters and initial resale thereof by the Underwriters and (iii) all underwriting discounts, selling commissions, and fees with respect to the Securities and any other related expenses pursuant to this Agreement.

(c) Termination of Agreement. If this Agreement is terminated by the Representatives in accordance with the provisions of Section 5, 9(a)(i), 9(a)(iii) or 10 hereof, the Company shall reimburse the non-defaulting Underwriters for all of their out-of-pocket expenses, including the reasonable fees and disbursements of counsel for the Underwriters. For the avoidance of doubt, if this Agreement is terminated pursuant to Section 10 hereof, the Blue Bird Parties shall have no obligation to reimburse a defaulting Underwriter for out-of-pocket costs and expenses (including the fees and expenses of their counsel) incurred by such defaulting Underwriter in connection with this Agreement and the offering contemplated hereby.

(d) Allocation of Expenses. The provisions of this Section 4 shall not affect any agreement that the Company and the Selling Stockholder may make for the sharing of such costs and expenses.

SECTION 5. Conditions of Underwriters’ Obligations. The obligations of the several Underwriters hereunder are subject to the accuracy, as of the Applicable Time and the Closing Time, of the representations and warranties of the Blue Bird Parties and the Selling Stockholder contained herein or in certificates of any officer of the Blue Bird Parties or any of their subsidiaries or on behalf of the Selling Stockholder delivered pursuant to the provisions hereof, to the performance by the Blue Bird Parties and the Selling Stockholder of their respective covenants and other obligations hereunder, and to the following further conditions:

(a) Effectiveness of Registration Statement. The Registration Statement has become effective and, at the Closing Time, no stop order suspending the effectiveness of the Registration Statement or any post-effective amendment thereto has been issued under the 1933 Act, no order preventing or suspending the use of any preliminary prospectus or the Prospectus has been issued and no proceedings for any of those purposes have been instituted or are pending or, to the knowledge of the Blue Bird Parties, contemplated; and the Blue Bird Parties have complied with each request (if any) from the Commission for additional information. The Company shall have paid the required Commission filing fees relating to the Securities within the time period required by Rule 456(b)(1)(i) under the 1933 Act Regulations without regard to the proviso therein and otherwise in accordance with Rules 456(b) and 457(r) under the 1933 Act Regulations and, if applicable, shall have updated the “Calculation of Registration Fee” table in accordance with Rule 456(b)(1)(ii) either in a post-effective amendment to the Registration Statement or in prospectus filed pursuant to Rule 424(b).

(b) Opinion of Counsel for Company. At the Closing Time, the Representatives shall have received the opinion and negative assurance letter, dated the Closing Time, of ▇▇▇▇, Gotshal & ▇▇▇▇▇▇ LLP, counsel for the Company, in form and substance reasonably satisfactory to counsel for the Underwriters, together with signed reproduced copies of such letters for each of the other Underwriters.

(c) Opinion of Counsel for Selling Stockholder. At the Closing Time, the Representatives shall have received the favorable opinions, dated the Closing Time, of ▇▇▇▇, ▇▇▇▇▇▇▇ & ▇▇▇▇▇▇ LLP, counsel for the Selling Stockholder, in form and substance reasonably satisfactory to counsel for the Underwriters, together with reproduced copies of such letter for each of the other Underwriters.

(d) Opinion of Counsel for Underwriters. At the Closing Time, the Representatives shall have received the favorable opinion and negative assurance letter, dated the Closing Time, of ▇▇▇▇▇▇ & ▇▇▇▇▇▇▇ LLP, counsel for the Underwriters, in the form and substance reasonably satisfactory to the Representatives, together with reproduced copies of such letter for each of the other Underwriters.

(e) Officers’ Certificate. At the Closing Time, there shall not have been, since the date hereof or since the respective dates as of which information is given in the Registration Statement, the General Disclosure Package or the Prospectus, any material adverse change in the condition, financial or otherwise, or in the earnings, business affairs or business prospects of the Blue Bird Parties and their subsidiaries considered as one enterprise, and the Representatives shall have received a certificate of the of the Chief Financial Officer of each Blue Bird Party and one additional senior executive officer of each Blue Bird Party who is satisfactory to the Representatives, dated the Closing Time, to the effect that (i) there has been no such material adverse change, (ii) the representations and warranties of each Blue Bird Party in this Agreement are true and correct with the same force and effect as though expressly made at and as of the Closing Time, (iii) each Blue Bird Party has complied with all agreements and satisfied all conditions on its part to be performed or satisfied at or prior to the Closing Time, and (iv) no stop order suspending the effectiveness of the Registration Statement under the 1933 Act has been issued, no order preventing or suspending the use of any preliminary prospectus or the Prospectus has been issued and no proceedings for any of those purposes have been instituted or are pending or, to their knowledge, contemplated by the Commission.

(f) Certificate of Selling Stockholder. At the Closing Time, the Representatives shall have received a certificate of the Selling Stockholder, dated the Closing Time, to the effect that (i) the representations and warranties of the Selling Stockholder in this Agreement are true and correct with the same force and effect as though expressly made at and as of the Closing Time and (ii) the Selling Stockholder has complied with all agreements and all conditions on its part to be performed under this Agreement at or prior to the Closing Time.

(g) Chief Financial Officer’s Certificate. At the time of the execution of this Agreement, the Representatives shall have received from the Chief Financial Officer of the Company, dated such date, in form and substance reasonably satisfactory to the Representatives, giving “management comfort” with respect to certain financial data contained in the Registration Statement, the General Disclosure Package and the Prospectus.

(h) Bring-down Chief Financial Officer’s Certificate. At the Closing Time, the Representatives shall have received from the Chief Financial Officer of the Company, dated the Closing Time, reaffirming the statements made in the certificate furnished pursuant to Section 5(g) hereof.

(i) Accountant’s Comfort Letter. At the time of the execution of this Agreement, the Representatives shall have received from BDO USA, P.C. a letter, dated such date, in form and substance satisfactory to the Representatives, together with reproduced copies of such letter for each of the other

Underwriters containing statements and information of the type ordinarily included in accountants’ “comfort letters” to underwriters with respect to the financial statements and certain financial information contained in the Registration Statement, the General Disclosure Package and the Prospectus.

(j) Bring-down Comfort Letter. At the Closing Time, the Representatives shall have received from BDO USA, P.C. a letter, dated the Closing Time, to the effect that they reaffirm the statements made in the letter furnished pursuant to Section 5(i) hereof, except that the specified date referred to shall be a date not more than three business days prior to the Closing Time.

(k) Approval of Listing. At the Closing Time, the Securities shall have been approved for listing on the Exchange.

(l) FINRA Compliance. FINRA has confirmed that it has not raised any objection with respect to the fairness and reasonableness of the underwriting terms and arrangements relating to the offering of the Securities, or the offering is otherwise exempt from FINRA filing under FINRA Rule 5110(h)(1)(C).

(m) Lock-up Agreements. At the date of this Agreement, the Representatives shall have received an agreement substantially in the form of Exhibit A hereto signed by the Selling Stockholder and the other persons listed in Schedule D hereto.

(n) Maintenance of Rating. None of the Blue Bird Parties have any debt securities or preferred stock that is rated by any “nationally recognized statistical rating organization” (as defined in Section 3(a)(62) of the 1934 Act).

(o) [Reserved].

(p) Additional Documents. At the Closing Time, counsel for the Underwriters shall have been furnished with such documents and opinions as they may reasonably request.

(q) Termination of Agreement. If any condition specified in this Section 5 shall not have been fulfilled when and as required to be fulfilled, this Agreement may be terminated by the Representatives by notice to the Company and the Selling Stockholder at any time at or prior to Closing Time, and such termination shall be without liability of any party to any other party except as provided in Section 4 hereof and except that Sections 1, 6, 7, 8, 14, 15, 16 and 17 hereof shall survive any such termination and remain in full force and effect.

SECTION 6. Indemnification.

(a) Indemnification of Underwriters by the Blue Bird Parties. The Blue Bird Parties, jointly and severally, agree to indemnify and hold harmless each Underwriter, its affiliates (as such term is defined in Rule 501(b) under the 1933 Act (each, an “Affiliate”)), its selling agents and each person, if any, who controls any Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act as follows:

(i) against any and all loss, liability, claim, damage and expense whatsoever, as incurred, arising out of any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement (or any amendment thereto), including any information deemed to be a part thereof pursuant to Rule 430B, or the omission or alleged omission therefrom of a material fact required to be stated therein or necessary to make the statements therein not misleading or arising out of any untrue statement or alleged untrue statement of a material fact included (A) in any preliminary prospectus, any Issuer Free Writing Prospectus, the General Disclosure Package

or the Prospectus (or any amendment or supplement thereto), or (B) in any materials or information provided to investors by, or with the approval of, the Company in connection with the marketing of the offering of the Securities (“Marketing Materials”), including any roadshow or investor presentations made to investors by the Company (whether in person or electronically), or the omission or alleged omission in any preliminary prospectus, any Issuer Free Writing Prospectus, the Prospectus or in any Marketing Materials of a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading;

(ii) against any and all loss, liability, claim, damage and expense whatsoever, as incurred, to the extent of the aggregate amount paid in settlement of any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or of any claim whatsoever based upon any such untrue statement or omission, or any such alleged untrue statement or omission; provided that (subject to Section 6(e) hereof) any such settlement is effected with the written consent of the Company and the Selling Stockholder;

(iii) against any and all expense whatsoever, as incurred (including the fees and disbursements of counsel chosen by the Representatives), reasonably incurred in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue statement or omission, or any such alleged untrue statement or omission, to the extent that any such expense is not paid under (i) or (ii) above;

provided, however, that this indemnity agreement shall not apply to any loss, liability, claim, damage or expense to the extent arising out of any untrue statement or omission or alleged untrue statement or omission made in the Registration Statement (or any amendment thereto), including any information deemed to be a part thereof pursuant to Rule 430B, the General Disclosure Package or the Prospectus (or any amendment or supplement thereto) in reliance upon and in conformity with the Underwriter Information.

(b) Indemnification of Underwriters by the Selling Stockholder. The Selling Stockholder, agrees to indemnify and hold harmless each Underwriter, its Affiliates and selling agents and each person, if any, who controls any Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act to the extent and in the manner set forth in Sections 6(a)(i), 6(a)(ii) and 6(a)(iii) hereof; provided that the Selling Stockholder shall be liable only to the extent that such untrue statement or alleged untrue statement or omission or alleged omission has been made in the Registration Statement, any preliminary prospectus, the General Disclosure Package, the Prospectus (or any amendment or supplement thereto) or any Issuer Free Writing Prospectus in reliance upon and in conformity with the Selling Stockholder Information; provided, further, that the liability under this subsection of the Selling Stockholder shall be limited to an amount equal to the aggregate gross proceeds after underwriting commissions and discounts, but before expenses, to the Selling Stockholder from the sale of Securities sold by the Selling Stockholder hereunder.

(c) Indemnification of the Blue Bird Parties, Directors and Officers, and Selling Stockholder. Each Underwriter severally agrees to indemnify and hold harmless each Blue Bird Party, each director of the Company, each officer of the Company who signed the Registration Statement and each person, if any, who controls the Company within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act, and the Selling Stockholder and each person, if any, who controls the Selling Stockholder within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act, against any and all loss, liability, claim, damage and expense described in the indemnity contained in Section 6(a) hereof, as incurred, but only with respect to untrue statements or omissions, or alleged untrue statements or omissions, made in the Registration Statement (or any amendment thereto), including any information deemed to be a part thereof pursuant to Rule 430B, the General Disclosure Package or the Prospectus (or any amendment or supplement thereto) in reliance upon and in conformity with the Underwriter Information.

(d) Actions against Parties; Notification. Each indemnified party shall give notice as promptly as reasonably practicable to each indemnifying party of any action commenced against it in respect of which indemnity may be sought hereunder, but failure to so notify an indemnifying party shall not relieve such indemnifying party from any liability hereunder to the extent it is not materially prejudiced as a result thereof and in any event shall not relieve it from any liability which it may have otherwise than on account of this indemnity agreement. In the case of parties indemnified pursuant to Sections 6(a) and 6(b) hereof, counsel to the indemnified parties shall be selected by the Representatives, and, in the case of parties indemnified pursuant to Section 6(c) hereof, counsel to the indemnified parties shall be selected by the Company and the Selling Stockholder. An indemnifying party may participate at its own expense in the defense of any such action; provided, however, that counsel to the indemnifying party shall not (except with the consent of the indemnified party) also be counsel to the indemnified party. In no event shall the indemnifying parties be liable for fees and expenses of more than one counsel (in addition to any local counsel) separate from their own counsel for all indemnified parties in connection with any one action or separate but similar or related actions in the same jurisdiction arising out of the same general allegations or circumstances. No indemnifying party shall, without the prior written consent of the indemnified parties, settle or compromise or consent to the entry of any judgment with respect to any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever in respect of which indemnification or contribution could be sought under this Section 6 or Section 7 hereof (whether or not the indemnified parties are actual or potential parties thereto), unless such settlement, compromise or consent (i) includes an unconditional release of each indemnified party, in form and substance satisfactory to such indemnified party, from all liability arising out of such litigation, investigation, proceeding or claim and (ii) does not include a statement as to or an admission of fault, culpability or a failure to act by or on behalf of any indemnified party.

(e) Settlement without Consent if Failure to Reimburse. If at any time an indemnified party shall have requested an indemnifying party to reimburse the indemnified party for fees and expenses of counsel as contemplated by this Section 6, such indemnifying party agrees that it shall be liable for any settlement of the nature contemplated by Section 6(a)(ii) hereof effected without its written consent if (i) such settlement is entered into more than 45 days after receipt by such indemnifying party of the aforesaid request, (ii) such indemnifying party shall have received notice of the terms of such settlement at least 30 days prior to such settlement being entered into and (iii) such indemnifying party shall not have reimbursed such indemnified party in accordance with such request prior to the date of such settlement.

(f) Non-Exclusive Remedies. The remedies provided for in this Section 6 are not exclusive and shall not limit any rights or remedies which may otherwise be available to any indemnified party at law or in equity.

(g) Other Agreements with Respect to Indemnification. The provisions of this Section 6 shall not affect any agreement among the Company and the Selling Stockholder with respect to indemnification.

SECTION 7. Contribution. If the indemnification provided for in Section 6 hereof is for any reason unavailable to or insufficient to hold harmless an indemnified party in respect of any losses, liabilities, claims, damages or expenses referred to therein, then each indemnifying party shall contribute to the aggregate amount of such losses, liabilities, claims, damages and expenses incurred by such indemnified party, as incurred, (i) in such proportion as is appropriate to reflect the relative benefits received by the Blue Bird Parties and the Selling Stockholder, on the one hand, and the Underwriters, on the other hand, from the offering of the Securities pursuant to this Agreement or (ii) if the allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits

referred to in clause (i) above but also the relative fault of the Blue Bird Parties and the Selling Stockholder, on the one hand, and of the Underwriters, on the other hand, in connection with the statements or omissions which resulted in such losses, liabilities, claims, damages or expenses, as well as any other relevant equitable considerations.

The relative benefits received by the Blue Bird Parties and the Selling Stockholder, on the one hand, and the Underwriters, on the other hand, in connection with the offering of the Securities pursuant to this Agreement shall be deemed to be in the same respective proportions as the total net proceeds from the offering of the Securities pursuant to this Agreement (before deducting expenses) received by the Blue Bird Parties and the Selling Stockholder, on the one hand, and the total underwriting discount received by the Underwriters, on the other hand, in each case as set forth on the cover of the Prospectus, bear to the aggregate public offering price of the Securities as set forth on the cover of the Prospectus.

The relative fault of the Blue Bird Parties and the Selling Stockholder, on the one hand, and the Underwriters, on the other hand, shall be determined by reference to, among other things, whether any such untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact relates to information supplied by the Blue Bird Parties and the Selling Stockholder or by the Underwriters and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

The Blue Bird Parties, the Selling Stockholder and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section 7 were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation which does not take account of the equitable considerations referred to above in this Section 7. The aggregate amount of losses, liabilities, claims, damages and expenses incurred by an indemnified party and referred to above in this Section 7, subject to the limitations set forth above, shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue or alleged untrue statement or omission or alleged omission.

Notwithstanding the provisions of this Section 7, no Underwriter shall be required to contribute any amount in excess of the underwriting commissions received by such Underwriter in connection with the Securities underwritten by it and distributed to the public.

No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the 1933 Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation.

For purposes of this Section 7, each person, if any, who controls an Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act and each Underwriter’s Affiliates and selling agents shall have the same rights to contribution as such Underwriter, and each director of the Company, each officer of the Company who signed the Registration Statement and each person, if any, who controls any Blue Bird Party or the Selling Stockholder within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act shall have the same rights to contribution as the Company or the Selling Stockholder, as the case may be. The Underwriters’ respective obligations to contribute pursuant to this Section 7 are several in proportion to the number of Securities set forth opposite their respective names in Schedule A hereto and not joint.

The remedies provided for in this Section 7 are not exclusive and shall not limit any rights or remedies which may otherwise be available to any indemnified party at law or in equity.

The provisions of this Section 7 shall not affect any agreement among the Company and the Selling Stockholder with respect to contribution.

SECTION 8. Representations, Warranties and Agreements to Survive. All representations, warranties and agreements contained in this Agreement or in certificates of officers of the Blue Bird Parties or any of their subsidiaries or the Selling Stockholder submitted pursuant hereto, shall remain operative and in full force and effect regardless of (i) any investigation made by or on behalf of any Underwriter or its Affiliates or selling agents, any person controlling any Underwriter, its officers or directors or any person controlling any Blue Bird Party or any Blue Bird Party’s officers or directors or the Selling Stockholder and (ii) delivery of and payment for the Securities.

SECTION 9. Termination of Agreement.

(a) Termination. The Representatives may terminate this Agreement, by notice to the Company and the Selling Stockholder, at any time at or prior to the Closing Time (i) if there has been, in the judgment of the Representatives, since the time of execution of this Agreement or since the respective dates as of which information is given in the Registration Statement, the General Disclosure Package or the Prospectus, any material adverse change in the condition, financial or otherwise, or in the earnings, business affairs or business prospects of the Company and its subsidiaries considered as one enterprise, such as to make it, in the judgment of the Representatives impractical or inadvisable to proceed with the completion of the offering contemplated hereby or to enforce contracts for sale of the Securities, or (ii) if there has occurred any material adverse change in the financial markets in the United States or the international financial markets, any outbreak of hostilities or escalation thereof or other calamity or crisis or any change or development involving a prospective change in national or international political, financial or economic conditions, in each case the effect of which is such as to make it, in the judgment of the Representatives, impracticable or inadvisable to proceed with the completion of the offering or to enforce contracts for the sale of the Securities, or (iii) if trading in any securities of the Company has been suspended or materially limited by the Commission or the Exchange, or (iv) if trading generally on the NYSE MKT or the New York Stock Exchange or in the Nasdaq Global Select Market has been suspended or materially limited, or minimum or maximum prices for trading have been fixed, or maximum ranges for prices have been required, by any of said exchanges or by order of the Commission, FINRA or any other governmental authority, or (v) a material disruption has occurred in commercial banking or securities settlement or clearance services in the United States or with respect to Clearstream or Euroclear systems in Europe, or (vi) if a banking moratorium has been declared by either Federal or New York authorities.

(b) Liabilities. If this Agreement is terminated pursuant to this Section 9, such termination shall be without liability of any party to any other party except as provided in Section 4 hereof, and provided further that Sections 1, 6, 7, 8, 14, 15, 16 and 17 hereof shall survive such termination and remain in full force and effect.

SECTION 10. Default by One or More of the Underwriters. If one or more of the Underwriters shall fail at the Closing Time to purchase the Securities which it or they are obligated to purchase under this Agreement (the “Defaulted Securities”), the Representatives shall have the right, within 24 hours thereafter, to make arrangements for one or more of the non-defaulting Underwriters, or any other underwriters, to purchase all, but not less than all, of the Defaulted Securities in such amounts as may be agreed upon and upon the terms herein set forth; if, however, the Representatives shall not have completed such arrangements within such 24-hour period, then:

(i) if the number of Defaulted Securities does not exceed 10% of the number of Securities to be purchased on such date, each of the non-defaulting Underwriters shall be obligated, severally and not jointly, to purchase the full amount thereof in the proportions that their respective underwriting obligations hereunder bear to the underwriting obligations of all non-defaulting Underwriters, or

(ii) if the number of Defaulted Securities exceeds 10% of the number of Securities to be purchased on such date, this Agreement shall terminate without liability on the part of any non-defaulting Underwriter. Any termination of this Agreement pursuant to this Section 10(ii) shall be without liability on the part of the Blue Bird Parties or the Selling Stockholder, except that the Blue Bird Parties will continue to be liable for the payment of expenses as set forth in Section 4 hereof and except that the provisions of Section 6 and Section 7 hereof shall not terminate and shall remain in effect.

No action taken pursuant to this Section 10 shall relieve any defaulting Underwriter from liability in respect of its default.

In the event of any such default which does not result in a termination of this Agreement, either (i) the Representatives or (ii) the Company and the Selling Stockholder shall have the right to postpone Closing Time for a period not exceeding seven days in order to effect any required changes in the Registration Statement, the General Disclosure Package or the Prospectus or in any other documents or arrangements. As used herein, the term “Underwriter” includes any person substituted for an Underwriter under this Section 10.

SECTION 11. Notices. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given if mailed or transmitted by any standard form of telecommunication. Notices to the Underwriters shall be directed to the Representatives at Barclays Capital Inc., ▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇, Attention: Syndicate Registration (Fax: (▇▇▇) ▇▇▇-▇▇▇▇); notices to the Company shall be directed to it at Blue Bird Corporation, ▇▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇, ▇▇▇▇▇ ▇▇▇, ▇▇▇▇▇, ▇▇▇▇▇▇▇ ▇▇▇▇▇ Attention: ▇▇▇ ▇▇▇▇▇▇ (email: ▇▇▇.▇▇▇▇▇▇@▇▇▇▇-▇▇▇▇.▇▇▇) with a copy to ▇▇▇▇, Gotshal & ▇▇▇▇▇▇ LLP, ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇▇▇, Attention: ▇▇▇▇▇▇▇ ▇▇▇▇▇ (email: ▇▇▇▇▇▇▇.▇▇▇▇▇@▇▇▇▇.▇▇▇) and ▇▇▇▇▇▇ ▇▇▇▇▇▇ (email: ▇▇▇▇▇▇.▇▇▇▇▇▇@▇▇▇▇.▇▇▇); notices to the Selling Stockholder shall be directed to ASP BB Holdings LLC c/o American Securities, LLC ▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇, ▇▇▇▇ ▇▇▇▇▇ ▇▇▇ ▇▇▇▇, ▇▇ ▇▇▇▇▇ Attention: ▇▇▇▇▇ ▇▇▇▇ and ▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇ (email: ▇▇▇▇▇@▇▇▇▇▇▇▇▇-▇▇▇▇▇▇▇▇▇▇.▇▇▇; ▇▇▇▇▇▇▇▇▇▇@▇▇▇▇▇▇▇▇-▇▇▇▇▇▇▇▇▇▇.▇▇▇) with a copy to ▇▇▇▇, Gotshal & ▇▇▇▇▇▇ LLP, ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇▇▇, Attention: ▇▇▇▇▇▇▇ ▇▇▇▇▇ (email: ▇▇▇▇▇▇▇.▇▇▇▇▇@▇▇▇▇.▇▇▇) and ▇▇▇▇▇▇ ▇▇▇▇▇▇ (email: ▇▇▇▇▇▇.▇▇▇▇▇▇@▇▇▇▇.▇▇▇).

SECTION 12. No Advisory or Fiduciary Relationship. Each of the Company and the Selling Stockholder acknowledges and agrees that (a) the purchase and sale of the Securities pursuant to this Agreement, including the determination of the public offering price of the Securities and any related discounts and commissions, is an arm’s-length commercial transaction between the Company and the Selling Stockholder, on the one hand, and the several Underwriters, on the other hand, and does not constitute a recommendation, investment advice or solicitation of any action by the Underwriters, (b) in connection with the offering of the Securities and the process leading thereto, each Underwriter is and has been acting solely as a principal and is not the agent or fiduciary of the Company, any of its subsidiaries or the Selling Stockholder, or its respective stockholders, creditors, employees or any other party, (c) no Underwriter has assumed or will assume an advisory or fiduciary responsibility in favor of the Company or the Selling Stockholder with respect to the offering of the Securities or the process leading thereto (irrespective of whether such Underwriter has advised or is currently advising the Company, any of its subsidiaries or the Selling Stockholder on other matters) and no Underwriter has any obligation to the Company or the Selling Stockholder with respect to the offering of the Securities except the obligations expressly set forth in this Agreement, (d) the Underwriters and their respective affiliates may be engaged in a broad range of transactions that involve interests that differ from those of each of the Company and the Selling Stockholder, (e) the Underwriters have not provided any legal, accounting, regulatory, investment or tax

advice with respect to the offering of the Securities, and each of the Company and the Selling Stockholder has consulted its own respective legal, accounting, financial, regulatory and tax advisors to the extent it deemed appropriate, and (f) none of the activities of the Underwriters in connection with the transactions contemplated herein constitutes a recommendation, investment advice or solicitation of any action by the Underwriters with respect to any entity or natural person.

SECTION 13. Recognition of the U.S. Special Resolution Regimes.

(a) In the event that any Underwriter that is a Covered Entity becomes subject to a proceeding under a U.S. Special Resolution Regime, the transfer from such Underwriter of this Agreement, and any interest and obligation in or under this Agreement, will be effective to the same extent as the transfer would be effective under the U.S. Special Resolution Regime if this Agreement, and any such interest and obligation, were governed by the laws of the United States or a state of the United States.

(b) In the event that any Underwriter that is a Covered Entity or a BHC Act Affiliate of such Underwriter becomes subject to a proceeding under a U.S. Special Resolution Regime, Default Rights under this Agreement that may be exercised against such Underwriter are permitted to be exercised to no greater extent than such Default Rights could be exercised under the U.S. Special Resolution Regime if this Agreement were governed by the laws of the United States or a state of the United States.

For purposes of this Section 13, a “BHC Act Affiliate” has the meaning assigned to the term “affiliate” in, and shall be interpreted in accordance with, 12 U.S.C. § 1841(k). “Covered Entity” means any of the following: (i) a “covered entity” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 252.82(b); (ii) a “covered bank” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 47.3(b); or (iii) a “covered FSI” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 382.2(b). “Default Right” has the meaning assigned to that term in, and shall be interpreted in accordance with, 12 C.F.R. §§ 252.81, 47.2 or 382.1, as applicable. “U.S. Special Resolution Regime” means each of (i) the Federal Deposit Insurance Act and the regulations promulgated thereunder and (ii) Title II of the ▇▇▇▇-▇▇▇▇▇ ▇▇▇▇ Street Reform and Consumer Protection Act and the regulations promulgated thereunder.

SECTION 14. Parties. This Agreement shall each inure to the benefit of and be binding upon the Underwriters, the Company, the Selling Stockholder and each of their respective successors. Nothing expressed or mentioned in this Agreement is intended or shall be construed to give any person, firm or corporation, other than the Underwriters, the Company, the Selling Stockholder and their respective successors and the controlling persons and officers and directors referred to in Sections 6 and 7 hereof and their heirs and legal representatives, any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision herein contained. This Agreement and all conditions and provisions hereof are intended to be for the sole and exclusive benefit of the Underwriters, the Company, the Selling Stockholder and their respective successors, and said controlling persons and officers and directors and their heirs and legal representatives, and for the benefit of no other person, firm or corporation. No purchaser of Securities from any Underwriter shall be deemed to be a successor by reason merely of such purchase.

SECTION 15. Trial by Jury. Each Blue Bird Party (on its behalf and, to the extent permitted by applicable law, on behalf of its stockholders and affiliates), the Selling Stockholder and each of the Underwriters hereby irrevocably waives, to the fullest extent permitted by applicable law, any and all right to trial by jury in any legal proceeding arising out of or relating to this Agreement or the transactions contemplated hereby.

SECTION 16. GOVERNING LAW. THIS AGREEMENT AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR RELATED TO THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF, THE STATE OF NEW YORK WITHOUT REGARD TO ITS CHOICE OF LAW PROVISIONS.

SECTION 17. Consent to Jurisdiction; Waiver of Immunity. Any legal suit, action or proceeding arising out of or based upon this Agreement or the transactions contemplated hereby (“Related Proceedings”) shall be instituted in (i) the federal courts of the United States of America located in the City and County of New York, Borough of Manhattan or (ii) the courts of the State of New York located in the City and County of New York, Borough of Manhattan (collectively, the “Specified Courts”), and each party irrevocably submits to the exclusive jurisdiction (except for proceedings instituted in regard to the enforcement of a judgment of any such court (a “Related Judgment”), as to which such jurisdiction is non-exclusive) of such courts in any such suit, action or proceeding. Service of any process, summons, notice or document by mail to such party’s address set forth above shall be effective service of process for any suit, action or other proceeding brought in any such court. The parties irrevocably and unconditionally waive any objection to the laying of venue of any suit, action or other proceeding in the Specified Courts and irrevocably and unconditionally waive and agree not to plead or claim in any such court that any such suit, action or other proceeding brought in any such court has been brought in an inconvenient forum.

SECTION 18. TIME. TIME SHALL BE OF THE ESSENCE OF THIS AGREEMENT. EXCEPT AS OTHERWISE SET FORTH HEREIN, SPECIFIED TIMES OF DAY REFER TO NEW YORK CITY TIME.

SECTION 19. Counterparts and Electronic Signatures. This Agreement may be executed in any number of counterparts, each of which shall be deemed to be an original, but all such counterparts shall together constitute one and the same Agreement. Electronic signatures complying with the New York Electronic Signatures and Records Act (N.Y. State Tech. §§ 301-309), as amended from time to time, or other applicable law will be deemed original signatures for purposes of this Agreement. Transmission by telecopy, electronic mail or other transmission method of an executed counterpart of this Agreement will constitute due and sufficient delivery of such counterpart.

SECTION 20. Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof.

[Signature page follows]

If the foregoing is in accordance with your understanding of our agreement, please sign and return to the Blue Bird Parties and the Selling Stockholder a counterpart hereof, whereupon this instrument, along with all counterparts, will become a binding agreement among the Underwriters, the Blue Bird Parties and the Selling Stockholder in accordance with its terms.


Very truly yours,

BLUE BIRD CORPORATION

By		/s/ ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇
		Name: ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇
		Title: Chief Financial Officer

SCHOOL BUS HOLDINGS INC.

By		/s/ ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇
		Name: ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇
		Title: Chief Financial Officer

ASP BB HOLDINGS LLC as Selling Stockholder

By		/s/ ▇▇▇▇▇ ▇▇▇▇
		Name: ▇▇▇▇▇ ▇▇▇▇
		Title: President


CONFIRMED AND ACCEPTED,
		as of the date first above written:

BARCLAYS CAPITAL INC.

By:

By		/s/ ▇▇▇▇▇▇ ▇▇▇▇▇▇
		Name: ▇▇▇▇▇▇ ▇▇▇▇▇▇
		Title: Managing Director

For themselves and as a Representatives of the other Underwriters named in Schedule A hereto.

[Signature Page to Underwriting Agreement]

SCHEDULE A

The public offering price per share for the Securities shall be variable.

The purchase price per share for the Securities to be paid by the several Underwriters shall be $32.90.


Name of Underwriter	Number of Securities
Barclays Capital Inc.		4,042,650

Total		4,042,650

Sch A

SCHEDULE B


	Number of Securities to be Sold
ASP BB Holdings LLC		4,042,650

Total		4,042,650

Sch B

SCHEDULE C-1

Pricing Terms

1. The Selling Stockholder is selling 4,042,650 shares of Common Stock.

2. The public offering price per share for the Securities shall be variable.

3. The purchase price per share for the Securities to be paid by the several Underwriters shall be $32.90.


	Number of Securities to be Sold
ASP BB Holdings LLC		4,042,650

Total		4,042,650

Sch C-1

SCHEDULE C-2

Free Writing Prospectuses

Launch Press Release, dated February 15, 2024.

Sch C-2

SCHEDULE D

List of Persons and Entities Subject to Lock-up

Directors

▇▇▇▇▇▇ ▇▇▇▇▇▇▇^*

▇▇▇▇▇▇▇▇▇ ▇. ▇▇▇▇

▇▇▇▇▇ ▇. ▇▇▇▇▇

▇▇▇▇▇▇▇ ▇▇▇▇▇

▇▇▇▇▇ ▇▇▇▇

▇▇▇▇▇ ▇. ▇▇▇▇▇▇

▇▇▇ ▇▇▇▇

▇▇▇▇ ▇▇▇▇▇▇▇▇

Officers

▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇

▇▇▇ ▇▇▇▇▇▇

▇▇▇▇▇▇▇ ▇▇▇▇▇

Selling Stockholder

ASP BB Holdings LLC

^*	▇▇. ▇▇▇▇▇▇▇, in addition to being a Director of the Company, is also the Chief Executive Officer.

Sch D

Exhibit A

FORM LOCK-UP AGREEMENT

PURSUANT TO SECTION 5(m)

[See attached]

Exh A-1

FORM LOCK-UP AGREEMENT

PURSUANT TO SECTION 5(m)

[__], 2024

[ ⚫ ]

as a Representatives of the several

Underwriters to be named in the

within-mentioned Underwriting Agreement

c/o [ ⚫ ]

Re:

Proposed Public Offering of Common Stock of Blue Bird Corporation

Ladies and Gentlemen:

The undersigned, a stockholder, officer and/or director of Blue Bird Corporation, a Delaware corporation (the “Company”), understands that [ ⚫ ] (the “Representatives”) propose to enter into an Underwriting Agreement (the “Underwriting Agreement”), on behalf of the several underwriters to be named in Schedule A thereto (the “Underwriters”), with the Company and the Selling Stockholder to be listed in Schedule B thereto providing for the public offering (the “Public Offering”) of shares of the Company’s common stock, par value $0.0001 per share (the “Common Stock”), pursuant to the Registration Statement on Form S-3 (the “Registration Statement”) filed with the Securities and Exchange Commission (the “Commission”). Capitalized terms used herein and not otherwise defined shall have the meanings set forth in the Underwriting Agreement. To the extent there are no additional Underwriters named in Schedule A to the Underwriting Agreement other than you, the term Representatives as used herein shall mean you, as Underwriter, and the terms Representatives and Underwriters shall mean either the singular or plural as the context requires.

In recognition of the benefit that the Public Offering will confer upon the undersigned as a stockholder, officer and/or director of the Company, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the undersigned agrees with each Underwriter that, during the period beginning on the date hereof and ending on the date that is 45 days from the date of the Underwriting Agreement (the “Lock-Up Period”), the undersigned will not, without the prior written consent of the Representatives, (i) directly or indirectly, offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase or otherwise transfer or dispose of any shares of the Company’s Common Stock or any securities convertible into or exercisable or exchangeable for Common Stock, whether now owned or hereafter acquired by the undersigned or with respect to which the undersigned has or hereafter acquires the power of disposition (collectively, the “Lock-Up Securities”), or (ii) enter into any swap or any other agreement or any transaction that transfers, in whole or in part, directly or indirectly, the economic consequence of ownership of the Lock-Up Securities, whether any such swap or transaction is to be settled by delivery of Common Stock or other securities, in cash or otherwise.

Exh A-2

Notwithstanding the foregoing, and subject to the conditions below, the undersigned may:

(a)

transfer the undersigned’s Lock-Up Securities:

(i)

as a bona fide gift or gifts, or for bona fide tax or estate planning purposes;

(ii)

by ▇▇▇▇, other testamentary document or intestacy succession to the legal representative, heir, beneficiary or a member of the immediate family of the undersigned;

(iii)

to any trust, partnership, limited liability company or other entity for the direct or indirect benefit of the undersigned or the immediate family or affiliate of the undersigned, or if the undersigned is a trust, to a trustor or beneficiary of the trust or to the estate of a beneficiary of such trust (for purposes of this lock-up agreement, “immediate family” shall mean any relationship by blood, current or former marriage, domestic partnership or adoption, not more remote than first cousin);

(iv)

to any partnership, limited liability company or other entity of which the undersigned and the immediate family of the undersigned are the legal and beneficial owner of all of the outstanding equity securities or similar interests;

(v)

to any immediate family member or any investment fund or other entity controlled or managed by the undersigned;

(vi)

if the undersigned is a corporation, partnership, limited liability company, trust or other business entity, (A) to another corporation, partnership, limited liability company, trust or other business entity that is an affiliate (as defined in Rule 405 promulgated under the Securities Act of 1933, as amended) of the undersigned, or to any investment fund or other entity controlling, controlled by, managing or managed by or under common control with the undersigned or affiliates of the undersigned (including, for the avoidance of doubt, where the undersigned is a partnership, to its general partner or a successor partnership or fund, or any other funds managed by such partnership), or (B) as part of a distribution, transfer or disposition by the undersigned to its stockholders, limited partners, general partners, limited liability company members or other equityholders or to the estate of any such stockholders, limited partners, general partners, limited liability company members or equityholders; or

(vii)

by operation of law, such as pursuant to a qualified domestic order, divorce settlement, divorce decree or separation agreement;

(viii)

to a nominee or custodian of a person or entity to whom a disposition or transfer would be permissible under clauses (i) through (iv) above;

(ix)

pursuant to an order of a court or regulatory agency having jurisdiction over the undersigned;

(x)

to the Company or its subsidiaries upon death, disability or termination of employment or other service relationship with the Company or the undersigned’s failure to meet certain conditions set out upon receipt of such Lock-Up Securities, in each case, of the undersigned;

(xi)

as part of a sale of the undersigned’s Lock-Up Securities acquired in open market transactions after the closing date of the Public Offering;

Exh A-3

(xii)

to the Company in connection with the vesting, settlement, or exercise of restricted stock units, options, warrants or other rights to purchase shares of Common Stock (including, in each case, by way of “net” or “cashless” exercise), including for the payment of exercise price and tax and remittance payments due as a result of the vesting, settlement, or exercise of such restricted stock units, options, warrants or rights, provided that any such shares of Common Stock received upon such exercise, vesting or settlement shall be subject to the terms of this lock-up agreement, and provided further that any such restricted stock units, options, warrants or rights are held by the undersigned pursuant to an agreement or equity awards granted under a stock incentive plan or other equity award plan, each such agreement or plan which is described in the Registration Statement, the General Disclosure Package and the Prospectus,

(xiii)

pursuant to a bona fide third party tender offer, merger, consolidation or other similar transaction that is approved by the Board of Directors of the Company and made to all holders of Common Stock involving a “Change of Control” (as defined below) of the Company (for purposes hereof, “Change of Control” shall mean the transfer (whether by tender offer, merger, consolidation or other similar transaction), in one transaction or a series of related transactions, to a person or group of affiliated persons, of shares of capital stock if, after such transfer, such person or group of affiliated persons would hold at least a majority of the outstanding voting securities of the Company (or the surviving entity), provided that if such transaction is not consummated, the undersigned’s shares of Common Stock shall remain subject to the restrictions set forth herein, [or]

(xiv)

to the Underwriters pursuant to the Underwriting Agreement[, or][;]

(xv)

[in an aggregate amount of up to, but not more than, [●] shares of the Company’s Common Stock in one or more transactions;]¹

provided that (A) in the case of any transfer or distribution pursuant to clause (a)(i), (ii), (iii), (iv), (v), (vi) and (viii), such transfer shall not involve a disposition for value and each donee, devisee, transferee or distributee shall execute and deliver to the Representatives a lock-up letter in the form of this lock-up agreement, (B) in the case of any transfer or distribution pursuant to clause (a)(i), (iii), (iv), (v), (vi), (ix) and (xi) no filing by any party (donor, donee, devisee, transferor, transferee, distributer or distributee) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or other public announcement shall be required or shall be made voluntarily in connection with such transfer or distribution (other than a filing on a Form 5 made after the expiration of the Restricted Period referred to above) and (C) in the case of any transfer or distribution pursuant to clause (a)(ii), (vii), (viii), (ix) and (xii) it shall be a condition to such transfer that no public filing, report or announcement shall be voluntarily made and if any filing under Section 16(a) of the Exchange Act, or other public filing, report or announcement reporting a reduction in beneficial ownership of shares of Common Stock in connection with such transfer or distribution shall be legally required during the Restricted Period, such filing, report or announcement shall clearly indicate in the footnotes thereto the nature and conditions of such transfer;

(b) exercise outstanding options, settle restricted stock units or other equity awards or exercise warrants pursuant to plans described in the Registration Statement, the General Disclosure Package and the Prospectus; provided that any Lock-Up Securities received upon such exercise, vesting or settlement shall be subject to the terms of this lock-up agreement;

(c) convert outstanding preferred stock, warrants to acquire preferred stock or convertible securities into shares of Common Stock or warrants to acquire shares of Common Stock; provided that any such shares of Common Stock or warrants received upon such conversion shall be subject to the terms of this lock-up agreement; and

¹	The lock-up agreements signed by certain of the Company’s directors and executive officers contain a carve-out to allow for the transfer of between 10,000 and 20,000 shares of the Company’s Common Stock per signatory.

Exh A-4

(d)(i) establish trading plans pursuant to Rule 10b5-1 under the Exchange Act for the transfer of shares of Lock-Up Securities; provided that (1) such plans do not provide for the transfer of Lock-Up Securities during the Lock-Up Period and (2) no filing by any party under the Exchange Act or other public announcement shall be required or made voluntarily in connection with such trading plan, other than a filing pursuant to Item 408 of Regulation S-K or on a Form 4 or Form 5, as applicable or (ii) transfer Lock-Up Securities pursuant to a Rule 10b5-1 trading plan that has been entered into by the undersigned, and only shares scheduled for sale thereunder, prior to the date hereof; provided that (1) the existence of such trading plan under Rule 10b5-1 was communicated to the Underwriters prior to the execution of this Agreement, (2) such trading plan under Rule 10b5-1 will not be amended or otherwise modified to increase shares scheduled for sale thereunder during the Lock-Up Period and (3) any public announcement or filings under the Exchange Act made in connection with clauses (d)(i) and d(ii) shall include an explanatory footnote stating the nature of the transfer.

The undersigned acknowledges and agrees that the Underwriters have not provided any recommendation or investment advice, nor have the Underwriters solicited any action from the undersigned with respect to the Public Offering, and the undersigned has consulted their own legal, accounting, financial, regulatory and tax advisors to the extent deemed appropriate.

The undersigned also agrees and consents to the entry of stop transfer instructions with the Company’s transfer agent and registrar against the transfer of the Lock-Up Securities except in compliance with the foregoing restrictions.

Nothing in this lock-up agreement shall prevent the undersigned from making a demand for, or exercising any right with respect to, the registration of the undersigned’s Common Stock, provided that (i) no sales of Common Stock shall be made in connection with any such demand or any such exercise by the undersigned or any of its affiliates prior to the expiration of the Restricted Period and (ii) no filing by any party (donor, donee, devisee, transferor, transferee, distributer or distributee) under the Exchange Act, or other public announcement shall be required or shall be made voluntarily in connection with any such demand or any such exercise prior to the expiration of the Restricted Period; provided further that in no event shall the Company be permitted to take an action in violation of Section 3(h) of the Underwriting Agreement.

The undersigned understands that, if (1) prior to the execution of the Underwriting Agreement, the Company files an application to withdraw the Registration Statement related to the Public Offering, (2) the Underwriting Agreement does not become effective by March 15, 2024, (3) the Underwriting Agreement (other than the provisions thereof which survive termination) shall terminate or be terminated prior to payment for and delivery of the Common Stock to be sold thereunder, or (4) the Representatives on behalf of the Underwriters advises the Company, or the Company or any Selling Stockholders advise the Representatives, in writing, prior to the execution of the Underwriting Agreement, that they have determined not to proceed with the Public Offering, then as of such relevant date, this lock-up agreement shall terminate and the undersigned shall be released from all obligations under this lock-up agreement.

This lock-up agreement may be delivered via facsimile, e-mail (including pdf or any electronic signature complying with the U.S. federal ESIGN Act of 2000, e.g., ▇▇▇.▇▇▇▇▇▇▇▇.▇▇▇ or ▇▇▇.▇▇▇▇▇▇▇▇.▇▇▇) or other transmission method and any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes.

Exh A-5

This lock-up agreement and any claim, controversy or dispute arising under or related to this lock-up agreement shall be governed by and construed in accordance with the laws of the State of New York.

[Signature page follows.]

Exh A-6


Very truly yours,

Signature:

Print Name:

Exh A-7

BLUE BIRD CORPORATION (a Delaware corporation) 4,042,650 Shares of Common Stock UNDERWRITING AGREEMENT

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