The National Nuclear Security Administration maintains and enhances the safety, security, and effectiveness of the U.S. nuclear weapons stockpile without nuclear explosive testing. The Life Extension Programs and alterations are essential to enabling the NNSA to accomplish its mission to certify the effectiveness of the nation’s nuclear deterrent.
Learn about each of NNSA’s major stockpile stewardship programs in these fact sheets:
- W76-1 Life Extension Program
- W80-4 Life Extension Program
- B61-12 Life Extension Program
- W88 Alternative 370