; (C) a removal action at such facility; and (D) services specified under subsection (a)(3). (c) Prohibition on use of amounts None of the amounts made available under this section may be used for the purpose of conducting— (1) lobbying activities; or (2) legal challenges of final decisions of the Department of Defense. 5. Limitation on availability of travel funds until submittal of plan for restoring data sharing on testing of water for perfluoroalkyl or polyfluoroalkyl substances (a) In general Of the funds authorized to be appropriated by this Act for operation and maintenance, defense-wide, for travel for the Office of the Under Secretary of Defense for Acquisition and Sustainment, not more than 75 percent may be obligated or expended until the Under Secretary of Defense for Acquisition and Sustainment submits to the congressional defense committees a plan to restore data sharing pertaining to the testing of water for perfluoroalkyl or polyfluoroalkyl substances, as required under section 345 of the National Defense Authorization Act for Fiscal Year 2022 ( Public Law 117–81