Section 4 of Pub. L. 96–277 provided that: “The provisions of this Act [amending former section 437 of Title 18, Crimes and Criminal Procedure, repealing sections 68, 68a, 87a, and 441 of this title, and enacting provisions formerly set out as a note under section 437 of Title 18] shall take effect sixty days after the date of enactment of this Act [June 17, 1980].”