Except as provided in section 7(b), this Act shall become effective upon the expiration of ninety days following October 6, 1972.

(Pub. L. 92–463, § 16, formerly § 15, Oct. 6, 1972, 86 Stat. 776; renumbered § 16, Pub. L. 105–153, § 2(b), Dec. 17, 1997, 111 Stat. 2689.)