Records Retention Contractor shall maintain books, records, documents, and other evidence pertaining to this Contract and orders placed by Purchasers under it to the extent and in such detail as shall adequately reflect contract performance and administration of purchases, payments, taxes, and fees. Contractor shall retain such records for a period of six (6) years following expiration or termination of this Contract or final payment for any order placed by a Purchaser against this Contract, whichever is later; Provided, however, that if any litigation, claim, or audit is commenced prior to the expiration of this period, such period shall extend until all such litigation, claims, or audits have been resolved.