Y-12’s Surveillance and Quality Evaluation Program assesses the integrity and life expectancy of the stockpile through surveillance and evaluation of weapon components and assemblies. Random samples from the stockpile are removed yearly and returned to Y-12 for precise forensics to evaluate life expectancies. Data from surveillance is used to determine weapon systems that might be candidates for a Life Extension Program.

The President and Congress have directed the National Nuclear Security Administration/Department of Energy to maintain the safety and reliability of the nation's nuclear deterrent without underground nuclear testing. In order to do that, DOE has established a program of science-based stockpile stewardship. Y-12 is an integral part of that mission.

We execute stewardship through refurbishment, dismantlement and surveillance of weapons in the nuclear stockpile.