This action is for award of a task order to Aptim Federal Services, LLC (APTIM) to be issued under the Nationwide Deactivation, Decommissioning and Removal (DD&R) multiple-award indefinite delivery indefinite quantity (IDIQ) contract number 89303320DEM000038, for the deactivation and decommissioning (D&D) of Building 281 (B281) at Lawrence Livermore National Laboratory (LLNL) in Livermore,