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The Naval Nuclear Propulsion Program (NNPP), also known as Naval Reactors, is a joint organization of the U.S. Department of Energy's National Nuclear Security Administration (NNSA) and the Department of the Navy.
It holds comprehensive cradle-to-grave responsibility for all aspects of naval nuclear propulsion, including research, design, development, construction, testing, operation, maintenance, radiological controls, training, and ultimate disposition of propulsion plants and related facilities.
The program powers the U.S. Navy's fleet of nuclear-powered submarines and aircraft carriers, enabling unmatched endurance, stealth, speed, and operational independence through pressurized water reactor technology.
Headquartered at the Washington Navy Yard in Washington, D.C., it centrally directs a lean network of government-owned, contractor-operated laboratories (including the Naval Nuclear Laboratory with Bettis and Knolls sites), nuclear-capable shipyards, training facilities, and prime contractors such as Bechtel Plant Machinery, Inc. (BPMI).
Established by Presidential Executive Order 12344 in 1982 and codified in statutes, the program is led by a Navy four-star admiral serving concurrently as NNSA Deputy Administrator, ensuring unified technical oversight and an unparalleled safety record of over 170 million miles steamed without a reactor accident impacting health or the environment.
It supports U.S. national security by maintaining the technical excellence and reliability of the world's most advanced naval nuclear propulsion systems.
Also known as NR and Office of Naval Reactors.
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