The Bettis Laboratory has developed advanced Naval nuclear propulsion technology and provided technical support during the construction, operation, and maintenance of Naval nuclear propulsion plants for more than 50 years. Bettis designed reactor plants for the first nuclear-powered submarines (USS NAUTILUS) and aircraft carrier (USS ENTERPRISE), all of the Nimitz class aircraft carriers, and the USS SEAWOLF. A major initiative for the Laboratory is the design of nuclear-powered propulsion plants and electrical power systems for the next class of U.S. Navy aircraft carriers. The Laboratory's main sites are located in Pittsburgh, Pennsylvania and Idaho Falls, Idaho. Other locations where Bettis provides support include Charleston, South Carolina, and shipyards located in Groton, Connecticut and Newport News, Virginia. The Bettis Laboratory is operated for the Department of Energy by Bechtel Bettis, Inc. Bettis' responsibilities for nuclear propulsion include research and development, design, testing, training, new construction and operational support, and the examination and disposal of expended reactors. This 'cradle-to-grave' responsibility provides the opportunity for diverse and challenging work assignments For more than 50 years, the Bettis Laboratory has been developing advanced naval nuclear propulsion technology and providing technical support to ensure the safe and reliable operation of our nation's submarine and aircraft carrier fleets. The Bettis Laboratory is operated for the Department of Energy by Bechtel Bettis Inc. The Bettis Laboratory is solely dedicated to the Naval Nuclear Propulsion Program, which is a joint Navy-DOE program responsible for the research, design, construction, operation, and maintenance of U.S. nuclear-powered warships.