Code of Federal Regulations Title 43. Public Lands:  Interior § 43.2462.0–3 Authority

Section 2 of the Classification and Multiple Use Act of September 19, 1964 (78 Stat. 986, 43 U.S.C. 1412), requires the Secretary of the Interior to take certain actions when he proposes the classification for sale or other disposal under any statute of a tract of land in excess of 2,560 acres.