Welcome to the NNSA Los Alamos Site Office
The National Nuclear Security Administration's Los Alamos Site Office is responsible for administering the Los Alamos National Laboratories contract and managing Federal Activities. For over 63 years, the Laboratory has served the nation by developing and applying the best science and technology to ensure its safety and security.
Established by Congress in 2000, the NNSA is a semi-autonomous agency within the U.S. Department of Energy responsible for enhancing national security through the military application of nuclear energy. NNSA maintains and enhances the safety, security, reliability and performance of the U.S. nuclear weapons stockpile without nuclear testing; works to reduce global danger from weapons of mass destruction; provides the U.S. Navy with safe and effective nuclear propulsion; and responds to nuclear and radiological emergencies in the U.S. and abroad.
NNSA Los Alamos Site Office Mission
To administer the Los Alamos National Laboratories contract. To manage our Federal Activities.
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Contact Information
Los Alamos Site Office (LASO)
3747 West Jemez Road
Los Alamos, NM 87544
(505) 667-5491
Please send any comments, questions, or feedback to Bernie Pleau
