E 1.1: Department of Energy (1977- )
E 2.1: Federal Energy Regulatory Commission (1977- )
E 3.1: Energy Information Administration (1977- )
E 4.1: Economic Regulatory Administration (1977-?)
E 5.1: Bonneville Power Administration (1977- )
E 6.1: Western Area Power Administration (1977- )
E 7.2: Alaska Power Administration (1993-1995)
E 8.1: Southeastern Power Administration (1995- )
E 9.2: National Renewable Energy Laboratory (1977- )
E 10.1: Office of Energy Efficiency and Renewable Energy
E 11.2: National Nuclear Security Administration (2000- )
E 12.1: National Energy Technology Laboratory (1999- )
