# National Defense R&D Services; Atomic Energy Defense Activities; Basic Research (PSC AC21)

Canonical: https://abierto.us/psc/ac21

Federal contract opportunities under product and service code AC21. 1 opportunities in the window, 0 open now.

## Recent (1 in all)

- July 14, 2026: DIA Justification for Other than Full and Open Competition (J-FY26-0053), justification. https://abierto.us/opportunities/jfy260053

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Sources: SAM.gov Contract Opportunities extract and USAspending.gov award data. Cite https://abierto.us/psc/ac21.