Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
The National Nuclear Security Administration Act created NNSA as part of the FY 2000 National Defense Authorization Act. Its most recent revision was in December 2023.
The Atomic Energy Defense Provisions are updated periodically. The most recent updates, as relevant to NNSA, was in March 2022.
