(a) The Secretary of the Interior is authorized by the Federal Land Policy and Management Act of 1976 (43 U.S.C. 1701,1713,to,as,it; or

(2) Disposal of such tract shall serve important public objectives, including but not limited to, expansion of communities and economic development, which cannot be achieved prudently or feasibly on lands other than public lands and which outweigh other public objectives and values, including, but not limited to, recreation and scenic values, which would be served by maintaining such tract in Federal ownership; or

(3) Such tract, because of its location or other characteristics is difficult and uneconomic to manage as part of the public lands and is not suitable for management by another Federal department or agency.

(b) The Secretary of the Interior is authorized by section 310 of the Federal Land Policy and Management Act (43 U.S.C. 1740) to promulgate rules and regulations to carry out the purpose of the Act.