1979—Pub. L. 96–153 designated existing provisions as subsec. (a), substituted provisions setting forth limitations relating to any action maintained under section 1709 of this title, for provisions setting forth limitations relating to any action maintained to enforce any liability created under section 1709(a) or (b)(2) of this title, and added subsec. (b).

Amendment by Pub. L. 96–153 effective on effective date of regulations implementing such amendment, but in no case later than six months following Dec. 21, 1979, see section 410 of Pub. L. 96–153, set out as a note under section 1701 of this title.

Section effective upon the expiration of two hundred and seventy days after Aug. 1, 1968, see section 1423 of Pub. L. 90–448, set out as a note under section 1701 of this title.