E:
Environmental Management - Responsible for the risk reduction and cleanup of the environmental legacy of the Nation's nuclear weapons program [U.S. Department of Energy (DOE), Office of Environmental Management (EM)]

L:
Low Dose Radiation Research Program - Researches cellular and molecular responses to doses of X-ray or gamma radiation that are at or near current workplace exposure limits [U.S. Department of Energy (DOE), Pacific Northwest National Laboratory (PNNL)]