(b) Special rule when more than one plan is covered by request. For the purposes of paragraphs (a)(1) and (a)(2), if the transaction involves the assumption by the purchaser of the seller's obligation to contribute to more than one multiemployer plan, then the total amount of the bond or escrow or of the unfunded vested benefits, as applicable, for all of the plans with respect to which the purchaser has not posted a bond or escrow shall be used to determine whether the applicable test is met.
(c) Non-applicability of tests in event of purchaser's insolvency. A purchaser will not qualify for a variance under this subpart pursuant to paragraph (a)(1) or (a)(2) of this section if, as of the earlier of the date of the plan's decision on the variance request or the first day of the first plan year beginning after the date of determination, the purchaser is the subject of a petition under title 11, United States Code, or of a proceeding under similar provisions of state insolvency laws.