Section 4261, Pub. L. 98–365, title V, § 501, July 17, 1984, 98 Stat. 461, related to continued Federal remote-sensing research and development. Section 4262, Pub. L. 98–365, title V, § 502, July 17, 1984, 98 Stat. 462; Pub. L. 100–147, title III, § 306, Oct. 30, 1987, 101 Stat. 876, related to remote-sensing research and development activities of Federal agencies. Section 4263, Pub. L. 98–365, title V, § 503, July 17, 1984, 98 Stat. 463, related to sale of experimental data. Section 4264, Pub. L. 98–365, title V, § 504, as added Pub. L. 100–147, title III, § 307, Oct. 30, 1987, 101 Stat. 877, related to remote-sensing research and development activities of system operators. For similar provisions, see section 5631 et seq. of this title.