the heading Counterterrorism Partnerships Fund for the program authorized by section 1209 of the Carl Levin and Howard P. Buck McKeon National Defense Authorization Act for Fiscal Year 2015 ( Public Law 113–291 ), or under the heading Iraq Train and Equip Fund for the program authorized by section 1236 of such Act, and not yet transferred to authorized recipients may be transferred to foreign security forces, irregular forces, groups, or individuals, authorized to receive assistance using amounts provided under the heading Counter-ISIS Train and Equip Fund in this Act: Provided, That such equipment may be transferred 15 days following written notification to the congressional defense committees. 8115. Of the amounts appropriated in this Act under the heading Operation and Maintenance, Defense-Wide , for the Defense Security Cooperation Agency, $5,000,000, to remain available until September 30, 2025, shall be for payments to reimburse key cooperating nations for logistical, military, and other support, including access, provided to United States military and stability operations to counter the Islamic State of Iraq and Syria: Provided, That such reimbursement payments 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 written 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 to counter the Islamic State of Iraq and Syria, and 15