; 1322(c)) as previously determined by the Pension Benefit Guaranty Corporation (referred to in this section as the corporation ) for the covered plans specified in paragraph (4), and the corporation’s applicable rules, practices, and policies on benefits payable in terminated single-employer plans shall, except as otherwise provided in this section, continue to apply with respect to such covered plans. (2) Recalculation of certain benefits (A) In general In any case in which the amount of monthly benefits with respect to an eligible participant or beneficiary described in paragraph (1) was calculated prior to the date of enactment of this Act, the corporation shall recalculate such amount pursuant to paragraph (1), and shall adjust any subsequent payments of such monthly benefits accordingly, as soon as practicable after such date. (B) Lump-sum payments of past-due benefits Not later than 180 days after the date of enactment of this Act, the corporation, in consultation with the Secretary of the Treasury and the Secretary of Labor, shall make a lump-sum payment to each eligible participant or beneficiary whose guaranteed benefits are recalculated under subparagraph (A) in an amount equal to— (i) in the case of an eligible participant, the excess of— (I) the total of the full vested plan benefits of the participant for all months for which such guaranteed benefits were paid prior to such recalculation, over (II) the sum of any applicable payments made to the eligible participant; and (ii) in the case of an eligible beneficiary, the sum of— (I) the amount that would be determined under clause (i) with respect to the participant of which the eligible beneficiary is a beneficiary if such participant were still in pay status