; of which $20,000,000 shall be derived from the Oil Spill Liability Trust Fund to carry out the purposes of section 1012(a)(5) of the Oil Pollution Act of 1990 ( 33 U.S.C. 2712(a)(5) ); and of which $1,256,655,000 shall be available until September 30, 2022. Research, development, test, and evaluation For necessary expenses of the Coast Guard for research, development, test, and evaluation; and for maintenance, rehabilitation, lease, and operation of facilities and equipment; $18,641,000; to remain available until September 30, 2020, of which $500,000 shall be derived from the Oil Spill Liability Trust Fund to carry out the purposes of section 1012(a)(5) of the Oil Pollution Act of 1990 ( 33 U.S.C. 2712(a)(5) ): Provided , That there may be credited to and used for the purposes of this appropriation funds received from State and local governments, other public authorities, private sources, and foreign countries for expenses incurred for research, development, testing, and evaluation. Retired pay For retired pay, including the payment of obligations otherwise chargeable to lapsed appropriations for this purpose, payments under the Retired Serviceman's Family Protection and Survivor Benefits Plans, payment for career status bonuses, concurrent receipts, and combat-related special compensation, and payments for medical care of retired personnel and their dependents under chapter 55 of title 10, United States Code, $1,673,000,000, to remain available until expended. United states secret service Operations and support For necessary expenses of the United States Secret Service for operations and support, including purchase of not to exceed 652 vehicles for police-type use for replacement only; hire of passenger motor vehicles; purchase of motorcycles made in the United States; hire of aircraft; rental of buildings in the District of Columbia; fencing, lighting, guard booths, and other facilities on private or other property not in Government ownership or control, as may be necessary to perform protective functions