; 40 U.S.C. 11301 note): Provided further, That the OPM Director shall notify, and receive approval from, the Committees on Appropriations of the House of Representatives and the Senate at least 15 days in advance of any transfer under the preceding proviso: Provided further, That amounts transferred to such a fund under such transfer authority from any organizational category of OPM shall not exceed 5 percent of each such organizational category’s budget as identified in the report required by section 608 of this Act: Provided further, That amounts transferred to such a fund shall remain available for obligation through September 30, 2027. OFFICE OF INSPECTOR GENERAL SALARIES AND EXPENSES (INCLUDING TRANSFER OF TRUST FUNDS) For necessary expenses of the Office of Inspector General in carrying out the provisions of chapter 4 of title 5, United States Code, including services as authorized by 5 U.S.C. 3109 , hire of passenger motor vehicles, $6,839,000, and in addition, not to exceed $29,192,000 for administrative expenses to audit, investigate, and provide other oversight of the Office of Personnel Management's retirement and insurance programs, to be transferred from the appropriate trust funds of the Office of Personnel Management, as determined by the Inspector General: Provided, That the Inspector General is authorized to rent conference rooms in the District of Columbia and elsewhere. Office of special counsel SALARIES AND EXPENSES For necessary expenses to carry out functions of the Office of Special Counsel, including services as authorized by 5 U.S.C. 3109 , payment of fees and expenses for witnesses, rental of conference rooms in the District of Columbia and elsewhere, and hire of passenger motor vehicles, $31,585,000. Privacy and civil liberties oversight board SALARIES AND EXPENSES For necessary expenses of the Privacy and Civil Liberties Oversight Board, as authorized by section 1061 of the Intelligence Reform and Terrorism Prevention Act of 2004 ( 42 U.S.C. 2000ee ), $13,700,000, to remain available