16 U.S.C. § 459s: Lands for certain projects added to certain projects

After June 6, 1942 , the lands acquired for the Acadia, French Creek, Shenandoah, and White Sands recreational demonstration projects shall be added to and become a part of Acadia National Park, Hopewell Village National Historic Site, Shenandoah National Park, and White Sands National Monument, 1 in the order named above, subject to all laws, rules, and regulations applicable to the respective areas to which such recreational demonstration projects are added. 1 See Change of Name note below. Upon the conveyance of the Silver Creek recreational demonstration project to the State of Oregon, or political subdivision thereof, pursuant to the Act of June 6, 1942 ( 56 Stat. 326 ) [sections 459r to 459t of this title], the Secretary of the Interior may authorize the grantee to exchange or otherwise dispose of any lands so conveyed in order to acquire other lands of approximately equal value for the purpose of consolidating the holdings of the grantee, the title to lands so acquired to be satisfactory to the Attorney General. For the aforesaid purpose the Secretary is authorized to execute a release, as to the particular lands involved, of any condition providing for a reversion of title to the United States, that may be contained in the conveyance by the United States to said grantee. No such release shall be executed, however, unless the grantee shall agree, in form satisfactory to the Secretary, that the lands to be acquired by it shall be subject to the conditions contained in the original conveyance from the United States, except that, in lieu of a provision for reversion, the grantee shall agree to convey said lands to the United States upon a finding by the Secretary in accordance with the procedure provided in said Act of June 6, 1942 , that the grantee has not complied with such conditions during a period of more than three years. Lands so conveyed to the United States shall be subject to administration or disposition in like manner as recreational demonstration project lands that revert to the United States under the terms of the aforesaid Act.”