; (2) $7,000,000 for each of fiscal years 2027 through 2029; (3) $2,000,000 for each of fiscal years 2030 through 2032; and (4) $1,000,000 for fiscal year 2033. IV Department of Defense 401. Corps of Engineers (a) Research, development, and demonstration (1) In general The Secretary of Defense, acting through the Chief of Engineers, shall carry out research, development, and demonstration activities in each of the areas described in this subsection. (2) Coastal marine carbon regional field trials (A) In general The Secretary of Defense, acting through the Chief of Engineers, shall carry out monitored field trials of coastal wetlands restoration optimized for carbon dioxide removal. (B) Coordination The Secretary of Defense, acting through the Chief of Engineers, shall carry out the activities described in subparagraph (A) in coordination with the grant program under section 906 of the National Oceans and Coastal Security Act ( 16 U.S.C. 7505 ) and the Coastal Resilience Grants Program of the National Oceanic and Atmospheric Administration. (3) Other activities The Secretary of Defense, acting through the Chief of Engineers, shall conduct other carbon dioxide removal research, development, and demonstration activities, as determined by the Secretary of Defense. (b) Authorization of appropriations There are authorized to be appropriated to the Secretary of Defense to carry out this section— (1) $24,000,000 for fiscal year 2024; (2) $45,000,000 for each of fiscal years 2025 through 2027; (3) $53,000,000 for each of fiscal years 2028 through 2030