DOE Office of Science + NNSA (conflated — split required)

Funds United States physical science research through Department of Energy programs and related nuclear security initiatives.

The DOE Office of Science (SC) is the United States' largest funder of basic research in the physical sciences, supporting roughly $8 billion per year across six program offices: ASCR, BES, BER, FES, HEP, and NP. SC stewards ten national laboratories (Argonne, Oak Ridge, Lawrence Berkeley, Brookhaven, SLAC, Fermilab, Pacific Northwest, Princeton Plasma Physics, Thomas Jefferson, and Ames) and operates the world's largest array of scientific user facilities. Funding reaches universities and research organizations through topical Funding Opportunity Announcements (FOAs) submitted via Grants.gov and managed in PAMS.

The National Nuclear Security Administration (NNSA) is a semi-autonomous agency within DOE focused on nuclear weapons stewardship, nonproliferation, and nuclear security. NNSA operates six production and laboratory sites (LANL, LLNL, SNL, KCNSC, Y-12, Pantex/SRS). Its academic programs — Stewardship Science Academic Alliances (SSAA), MSIPP, and Krell-administered graduate fellowships — are a small fraction of its FY2026 $30 billion budget. NOTE: this catalog entry is a conflation of two distinct federal entities. Bobik must split into us-doe-sc and us-doe-nnsa before ingesting.