Section 4495, added Pub. L. 96–283, title IV, § 402(a), June 28, 1980, 94 Stat. 582, provided for imposition of tax on removal of hard mineral resource from deep seabed.
Section 4496, added Pub. L. 96–283, title IV, § 402(a), June 28, 1980, 94 Stat. 583, defined terms for purposes of this subchapter.
Section 4497, added Pub. L. 96–283, title IV, § 402(a), June 28, 1980, 94 Stat. 583; amended Pub. L. 99–514, title XV, § 1511(c)(7), Oct. 22, 1986, 100 Stat. 2745, related to imputed values for commercially recoverable metals and minerals and provided for suspension of tax on minerals held for later processing.
Section 4498, added Pub. L. 96–283, title IV, § 402(a), June 28, 1980, 94 Stat. 584, provided for termination of tax imposed by section 4495.