(As amended Apr. 22, 1974, eff. Dec. 1, 1975; Pub. L. 94–64, § 3(11), (12), July 31, 1975, 89 Stat. 372; Apr. 28, 1983, eff. Aug. 1, 1983; Mar. 9, 1987, eff. Aug. 1, 1987; Apr. 22, 1993, eff. Dec. 1, 1993; Apr. 29, 2002, eff. Dec. 1, 2002; Apr. 25, 2014, eff. Dec. 1, 2014.)