(a) An order initially withdrawing 5,000 or more acres of land in the aggregate, on the basis of the Secretary's authority under section 204 of the Act (43 U.S.C. 1714), may be made for a period not to exceed 20 years from the date the order is signed, except that withdrawals exceeding 5,000 acres in the State of Alaska shall not become effective until notice is provided in the Federal Register and to both Houses of Congress. All orders withdrawing 5,000 or more acres in the aggregate shall be subject to the Congressional review provision of section 204(c) of the Act (43 U.S.C. 1714(c)), except as follows:

(1) A National Wildlife Refuge System withdrawal may not be terminated as provided in section 204(c)(1) of the Act (43 U.S.C 1714(c)(1)) other than by an Act of Congress; or

(2) A withdrawal exceeding 5,000 acres in the State of Alaska shall terminate unless Congress passes a Joint Resolution of approval within 1 year after the notice of such withdrawal has been submitted to the Congress.

(b) An order initially withdrawing less than 5,000 acres of land, in the aggregate, on the basis of the Secretary's authority under section 204 of the Act (43 U.S.C. 1714), may be made:

(1) For such time as the Secretary determines desirable for a resource use;

(2) For not more than 20 years for any other use, including, but not limited to, the use of lands for non-resource uses, related administrative sites and facilities or for other proprietary purposes; or

(3) For not more than 5 years to preserve the lands for a specific use then under consideration by either House of Congress.

(c) An order withdrawing lands on the basis of an emergency as provided for in section 204(e) of the Act (43 U.S.C. 1714(e)) may be made for not more than 3 years.

(d) Except for emergency withdrawals, withdrawals of specific duration may be extended, as provided for in §2310.4 of this title.