Code of Federal Regulations Title 43. Public Lands:  Interior § 43.2461.5 Segregative effect

(1) Classification of the lands within 2 years of publication of the notice of proposed classification in the Federal Register;

(2) Publication in the Federal Register of a notice of termination of the proposed classification;

(3) An Act of Congress;

(4) Expiration of a 2–year period from the date of publication of the notice of proposed classification without continuance as prescribed by the Classification and Multiple Use Act, or expiration of an additional period, not exceeding 2 years, if the required notice of proposed continuance is given.

(1) Reclassification of the lands for some form of disposal;

(2) Publication in the Federal Register of a notice of termination of the classification;

(3) An Act of Congress;

(4) Expiration of the classification.