ERISA Event a Reportable Event with respect to a Pension Plan; (b) a withdrawal by any Obligor or ERISA Affiliate from a Pension Plan subject to Section 4063 of ERISA during a plan year in which it was a substantial employer (as defined in Section 4001(a)(2) of ERISA) or a cessation of operations that is treated as such a withdrawal under Section 4062(e) of ERISA; (c) a complete or partial withdrawal by any Obligor or ERISA Affiliate from a Multiemployer Plan or notification that a Multiemployer Plan is in reorganization; (d) the filing of a notice of intent to terminate, the treatment of a Plan amendment as a termination under Section 4041 or 4041A of ERISA, or the commencement of proceedings by the PBGC to terminate a Pension Plan or Multiemployer Plan; (e) the determination that any Pension Plan or Multiemployer Plan is considered an at risk plan or a plan in critical or endangered status under the Code, ERISA or the Pension Protection Act of 2006; (f) an event or condition which constitutes grounds under Section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any Pension Plan or Multiemployer Plan; or (g) the imposition of any liability under Title IV of ERISA, other than for PBGC premiums due but not delinquent under Section 4007 of ERISA, upon any Obligor or ERISA Affiliate.
Market Disruption Event Section 6.3(a) of the Equity Definitions is hereby replaced in its entirety by the following: