2002—
Pub. L. 107–347, title I, § 102(c)(2), Dec. 17, 2002,
116 Stat. 2910, added item 507.
1990—
Pub. L. 101–576, title II, § 203(c), Nov. 15, 1990,
104 Stat. 2841, added items 503 and 504 and redesignated former items 503 and 504 as 505 and 506, respectively.
1983—
Pub. L. 97–452, § 1(1)(B), Jan. 12, 1983,
96 Stat. 2467, added item 504.