(A) any Seller, Guarantor or ERISA Affiliate shall engage in any “prohibited transaction” (as defined in Section 406 of ERISA or Section 4975 of the Code) involving any Plan, (B) any “accumulated funding deficiency” (as defined in Section 304 of ERISA), whether or not waived, shall exist with respect to any Plan or any Lien in favor of the PBGC or a Plan shall arise on the assets of Seller, Guarantor or any ERISA Affiliate, (C) a Reportable Event shall occur with respect to, or proceedings shall commence to have a trustee appointed, or a trustee shall be appointed, to administer or to terminate, any Plan, which Reportable Event or commencement of proceedings or appointment of a trustee is, in the reasonable opinion of Buyer, likely to result in the termination of such Plan for purposes of Title IV of ERISA, (D) any Plan shall terminate for purposes of Title IV of ERISA, (E)  Seller, Guarantor or any ERISA Affiliate shall, or in the reasonable opinion of Buyer is likely to, incur any liability in connection with a withdrawal from, or the insolvency or reorganization of, a Multiemployer Plan or (F) any other event or condition shall occur or exist with respect to a Plan; and in each case in clauses (A) through (F) above, such event or condition, together with all other such events or conditions, if any, could reasonably be expected to have a Material Adverse Effect.