That of the total amount provided under this heading in this Act, $46,780,000 shall be to respond to the situation in Ukraine and for related expenses: Provided further, That such amount is designated by the Congress as being for an emergency requirement pursuant to section 251(b)(2)(A)(i) of the Balanced Budget and Emergency Deficit Control Act of 1985. Defense production act purchases For an additional amount for Defense Production Act Purchases , $331,200,000, to remain available until September 30, 2025, for activities by the Department of Defense pursuant to sections 108, 301, 302, and 303 of the Defense Production Act of 1950 ( 50 U.S.C. 4518 , 4531, 4532, and 4533): Provided, That such amounts shall be obligated and expended by the Secretary of Defense as if delegated the necessary authorities conferred by the Defense Production Act of 1950: Provided further, That such amount is designated by the Congress as being for an emergency requirement pursuant to section 251(b)(2)(A)(i) of the Balanced Budget and Emergency Deficit Control Act of 1985. RESEARCH, DEVELOPMENT, TEST AND EVALUATION Research, development, test and evaluation, army For an additional amount for Research, Development, Test and Evaluation, Army , $18,594,000, to remain available until September 30, 2025, to respond to the situation in Ukraine and for related expenses: Provided, That such amount is designated by the Congress as being for an emergency requirement pursuant to section 251(b)(2)(A)(i) of the Balanced Budget and Emergency Deficit Control Act of 1985. Research, development, test and evaluation, navy For an additional amount for Research, Development, Test and Evaluation, Navy , $20,825,000, to remain available until September 30, 2025, to respond to the situation in Ukraine, to support improvements to the submarine industrial base, and for related expenses: Provided, That of the total amount provided under this heading in this Act, $13,825,000 shall be to respond to the situation in Ukraine and for related expenses: Provided