(As amended Feb. 28, 1966, eff. July 1, 1966; Apr. 24, 1972, eff. Oct. 1, 1972; Apr. 30, 1979, eff. Aug. 1, 1979; Pub. L. 96–42, § 1(2), July 31, 1979, 93 Stat. 326; Apr. 28, 1982, eff. Aug. 1, 1982; Pub. L. 98–473, title II, §§ 209(c), 215(d), Oct. 12, 1984, 98 Stat. 1986, 2016; Mar. 9, 1987, eff. Aug. 1, 1987; Apr. 25, 1989, eff. Dec. 1, 1989; Apr. 22, 1993, eff. Dec. 1, 1993; Apr. 29, 1994, eff. Dec. 1, 1994; Apr. 27, 1995, eff. Dec. 1, 1995; Apr. 29, 2002, eff. Dec. 1, 2002; Apr. 12, 2006, eff. Dec. 1, 2006; Apr. 26, 2011, eff. Dec. 1, 2011.)
