(a)(1) Lands covered by a withdrawal application or withdrawal proposal filed prior to October 21, 1976, were segregated on the date the application was properly filed and remain segregated through October 20, 1991, to the extent specified in notices published in the Federal Register, unless the segregative effect is terminated prior to that date in accordance with procedures in § 2091.5-1 of this title.

(2) Any amendment made to a withdrawal application filed prior to October 21, 1976, for the purpose of adding lands modifies the term of segregation for all lands covered by the amended application to conform with the provision of § 2091.5-1 of this title.

(b) Segregations resulting from applications filed under this section terminate in accordance with procedures in § 2091.5-1 of this title.