counter the Islamic State of Iraq and Syria: Provided further, That such reimbursement payments under the preceding proviso may be made in such amounts as the Secretary of Defense, with the concurrence of the Secretary of State, and in consultation with the Director of the Office of Management and Budget, may determine, based on documentation determined by the Secretary of Defense to adequately account for the support provided, and such determination is final and conclusive upon the accounting officers of the United States, and 15 days following notification to the appropriate congressional committees: Provided further , That these funds may be used for the purpose of providing specialized training and procuring supplies and specialized equipment and providing such supplies and loaning such equipment on a non-reimbursable basis to coalition forces supporting United States military and stability operations in Afghanistan and to counter the Islamic State of Iraq and Syria, and 15 days following notification to the appropriate congressional committees: Provided further , That of the funds provided under this heading, not to exceed $850,000,000, to remain available until September 30, 2020, shall be available to provide support and assistance to foreign security forces or other groups or individuals to conduct, support or facilitate counterterrorism, crisis response, or other Department of Defense security cooperation programs, including programs to enhance the border security of nations adjacent to conflict areas resulting from actions of the Islamic State of Iraq and Syria: Provided further , That the Secretary of Defense shall provide quarterly reports to the congressional defense committees on the use of funds provided under this heading: Provided further , That funds provided under this heading may be used to support the Government of Jordan, in such amounts as the Secretary of Defense may determine, to enhance the ability of the armed forces of Jordan to increase or sustain security along its borders, upon 15