The National Nuclear Security Administration (NNSA) today announced that Consolidated Nuclear Security, LLC (CNS) has been selected to be the management and operating contractor for the Y-12 National Security Complex in Oak Ridge, Tenn., and the Pantex Plant near Amarillo, Texas. The contract also includes construction project management of the Uranium Processing Facility (UPF) at the Y-12 National Security Complex, and an option for unexercised option for Savannah River Tritium Operations at the Savannah River Site in near Aiken, S.C.