The Pantex Plant is the United States' only nuclear weapons assembly and disassembly facility and is charged with maintaining the safety, security and reliability of the nation’s nuclear weapons stockpile. The facility is located on a 16,000 acre (65 km2) site 17 miles (27 km) northeast of Amarillo, in Carson County, Texas in the Panhandle of Texas. The plant is managed and operated for the United States Department of Energy by Consolidated Nuclear Security and Sandia National Laboratories. Consolidated Nuclear Security, LLC (CNS) is composed of member companies Bechtel National, Inc., Lockheed Martin Services, Inc., Orbital ATK, Inc, and SOC LLC, with Booz Allen Hamilton, Inc. as a teaming subcontractor. CNS also operates the Y-12 National Security Complex.