This Site-Wide EIS evaluates the continued operation of the DOE/NNSA activities at Sandia National Laboratories. The SWEIS will consider a No Action Alternative, which is to continue current operations through implementation of the 1999 Record of Decision and subsequent NEPA decisions, and three action alternatives proposed for consideration.

NNSA has administratively canceled the SWEIS originally announced in 2011 and will prepare a new SWEIS, DOE/EIS-0556.