32 C.F.R. § 174.14
(b) In order to ensure quick reuse, the Secretary concerned, in consultation with the LRA, will establish initial levels of maintenance and repair needed to aid redevelopment and to protect the property for the time periods set forth in paragraph (c) of this section. Where agreement between the Secretary and the LRA cannot be reached, the Secretary will determine the required levels of maintenance and repair and its duration. In no case will these initial levels of maintenance:
(c) Unless the Secretary concerned determines that it is in the national security interest of the United States, the levels of maintenance and repair specified in paragraph (b) of this section shall not be changed until the earlier of: