Section 5991, Pub. L. 105–391, title VI, § 601, Nov. 13, 1998, 112 Stat. 3518, related to purposes of this subchapter. Section 5992, Pub. L. 105–391, title VI, § 602, Nov. 13, 1998, 112 Stat. 3519, related to establishment of the national park passport program. Section 5993, Pub. L. 105–391, title VI, § 603, Nov. 13, 1998, 112 Stat. 3519; Pub. L. 106–113, div. B, 1000(a)(3) [title I, 145], Nov. 29, 1999, 113 Stat. 1535, 1501A171; Pub. L. 106–176, title III, § 306, Mar. 10, 2000, 114 Stat. 33, related to administration of the national park passport program. Section 5994, Pub. L. 105–391, title VI, § 604, Nov. 13, 1998, 112 Stat. 3519, related to foreign sales of Golden Eagle Passports. Section 5995, Pub. L. 105–391, title VI, § 605, Nov. 13, 1998, 112 Stat. 3520, related to effect of the national park passport on other laws and programs.