Pub. L. 93-406, tit. I, subtit. B, pt. 2, sec. 208
Mergers and Consolidations of Plans or Transfers of Plan Assets
Mergers and Consolidations of Plans or Transfers of Plan Assets Sec. 208. A pension plan may not merge or consolidate with, or transfer its assets or liabilities to, any other plan after the date of the enactment of this Act, unless each participant in the plan would (if the plan then terminated) receive a benefit immediately after the merger, consolidation, or transfer which is equal to or greater than the benefit he would have been entitled to receive immediately before the merger, consolidation, or transfer (if the plan had then terminated). This paragraph shall apply in the case of a multiemployer plan only to the extent determined by the Pension Benefit Guaranty Corporation.