law enforcement agencies for expenses incurred participating in training accreditation. 405. The Federal Law Enforcement Training Accreditation Board, including representatives from the Federal law enforcement community and non-Federal accreditation experts involved in law enforcement training, shall lead the Federal law enforcement training accreditation process to continue the implementation of measuring and assessing the quality and effectiveness of Federal law enforcement training programs, facilities, and instructors. 406. (a) The Director of the Federal Law Enforcement Training Centers may accept transfers to its Procurement, Construction, and Improvements account from Government agencies requesting the construction of special use facilities, as authorized by the Economy Act ( 31 U.S.C. 1535(b) ). (b) The Federal Law Enforcement Training Centers shall maintain administrative control and ownership upon completion of such facilities. 407. The functions of the Federal Law Enforcement Training Centers instructor staff shall be classified as inherently governmental for purposes of the Federal Activities Inventory Reform Act of 1998 ( 31 U.S.C. 501 note). V GENERAL PROVISIONS (INCLUDING RESCISSIONS OF FUNDS) 501. No part of any appropriation contained in this Act shall remain available for obligation beyond the current fiscal year unless expressly so provided herein. 502. Subject to the requirements of section 503 of this Act, the unexpended balances of prior appropriations provided for activities in this Act may be transferred to appropriation accounts for such activities established pursuant to this Act, may be merged with funds in the applicable established accounts, and thereafter may be accounted for as one fund for the same time period as originally enacted. 503. (a) None of the funds provided by this Act, provided by previous appropriations Acts to the components in or transferred to the Department of Homeland Security that remain available for obligation or expenditure in fiscal year 2024, or provided