Energy and Water Development Appropriations: Nuclear Weapons Activities [Updated August 24, 2021] [open pdf - 1MB]
From the Overview: "Responsibility for U.S. nuclear weapons resides with both the Department of Defense (DOD) and the Department of Energy (DOE). DOD develops, deploys, and operates the missiles and aircraft that can deliver nuclear warheads. It also generates the military requirements for the warheads carried on those platforms. The National Nuclear Security Administration (NNSA), a semiautonomous agency within the Department of Energy, oversees the research, development, test, and acquisition programs that produce, maintain, and sustain the warheads. NNSA is also responsible for storing and securing the warheads that are not deployed with DOD delivery systems and for dismantling warheads that have been retired and removed from the stockpile. Congress authorizes funding for both DOD and NNSA nuclear weapons activities in the annual National Defense Authorization Act (NDAA); it funds the NNSA budget through the Energy and Water Development Appropriations Act. This report focuses on the portion of the Energy and Water Development Appropriations Act that funds NNSA's nuclear weapons activities."
CRS Report for Congress, R44442
Congressional Research Service: https://crsreports.congress.gov/