DOE's Waste Isolation Pilot Plant (WIPP) was recognized by the New Mexico Environment Department (NMED) with Green Zia Environmental Leadership Program (GZELP) Gold Level membership for excellence. The GZELP annually recognizes organizations and businesses for their demonstration of environmental leadership in support of pollution prevention and sustainability. The Gold Level is the highest GZELP recognition. WIPP was chosen by the NMED as a Silver Level Leader in 2012 and Bronze Level Leader in 2011. The NMED, the state regulatory agency, selected WIPP based on continuing environmental achievements, including hazardous waste reduction, energy conservation and pollution prevention.