Act of July 20, 1956, referred to in subsec. (a), is act July 20, 1956, ch. 645, 70 Stat. 581, which was set out as a note under former section 465 of this title and was omitted from the Code as being of special and not general application.

Act of August 2, 1956, referred to in subsec. (a), is act Aug. 2, 1956, ch. 886, 70 Stat. 941, which was not classified to the Code.

Act of October 9, 1972, referred to in subsec. (a), is Pub. L. 92–480, Oct. 9, 1972, 86 Stat. 795, which was not classified to the Code.

Section 1 of the Act of October 13, 1972, referred to in subsec. (a), is section 1 of Pub. L. 92–488, Oct. 13, 1972, 86 Stat. 806, which was not classified to the Code.

The Mineral Leasing Act of 1920, referred to in subsec. (a), is act Feb. 25, 1920, ch. 85, 41 Stat. 437, known as the Mineral Leasing Act, which is classified generally to chapter 3A (§ 181 et seq.) of Title 30, Mineral Lands and Mining. For complete classification of this Act to the Code, see Short Title note set out under section 181 of Title 30 and Tables.

Section was formerly classified to section 459d of this title prior to editorial reclassification and renumbering as this section.