National Nuclear Security Administration (NNSA)
The National Nuclear Security Administration (NNSA) works to ensure that the nation's stockpile of nuclear weapons is safe and secure. It also works to ensure the safety of naval nuclear reactors, is the first responder in case of nuclear emergency, and works on worldwide nuclear nonproliferation issues.
Agency profile
Core identity, hierarchy, and public contact details from the authoritative directory.
- Official name
- National Nuclear Security Administration
- Display name
- National Nuclear Security Administration (NNSA)
- Short name
- NNSA
- Branch
- Executive
- Agency type
- administration
- Phone
- 1-202-586-5000 (energy switchboard)
- Main address
- 1000 Independence Ave., SW Washington, DC 20585
Known names and aliases
Alternate names captured from the upstream authoritative sources.
Recent rules and notices
Recent Federal Register items published by this agency. Read the summary here or jump to the raw public record.