[Code of Federal Regulations] [Title 43, Volume 2] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 43CFR2091.5-6] [Page 58] TITLE 43--PUBLIC LANDS: INTERIOR CHAPTER II--BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR PART 2090_SPECIAL LAWS AND RULES--Table of Contents Subpart 2091_Segregation and Opening of Lands Sec. 2091.5-6 Congressional withdrawals and opening of lands. (a) Congressional withdrawals become effective and are terminated as specified in the statute making the withdrawal. If the statute does not specify the date, duration and extent of segregation, the Secretary shall publish in the Federal Register a Public Land Order so specifying. (b) If the statute does not specify when and to what extent the lands are to be opened, the Secretary publishes in the Federal Register an opening order so specifying.