; medical examinations performed for veterans by private physicians on a fee basis; rental of conference rooms in the District of Columbia and elsewhere; hire of passenger motor vehicles; not to exceed $2,500 for official reception and representation expenses; advances for reimbursements to applicable funds of OPM and the Federal Bureau of Investigation for expenses incurred under Executive Order No. 10422 of January 9, 1953, as amended; and payment of per diem and/or subsistence allowances to employees where Voting Rights Act activities require an employee to remain overnight at his or her post of duty, $132,172,000: Provided , That of the total amount made available under this heading, not to exceed $14,000,000 shall remain available until September 30, 2020, for information technology infrastructure modernization and Trust Fund Federal Financial System migration or modernization, and shall be in addition to funds otherwise made available for such purposes: Provided further , That of the total amount made available under this heading, $639,018 may be made available for strengthening the capacity and capabilities of the acquisition workforce (as defined by the Office of Federal Procurement Policy Act, as amended ( 41 U.S.C. 4001 et seq.)), including the recruitment, hiring, training, and retention of such workforce and information technology in support of acquisition workforce effectiveness or for management solutions to improve acquisition management