Section, act June 25, 1948, ch. 645,
62 Stat. 686; Aug. 5, 1953, ch. 325,
67 Stat. 366;
Pub. L. 87–845, § 3(a), Oct. 18, 1962, 76A Stat. 698;
Pub. L. 90–357, § 59, June 22, 1968,
82 Stat. 248;
Pub. L. 101–647, title XXXV, § 3519(c), Nov. 29, 1990,
104 Stat. 4923;
Pub. L. 103–322, title XXXIII, § 330010(9), Sept. 13, 1994,
108 Stat. 2143, listed Title 18 sections applicable to and within Canal Zone.