Hearing Before the Committee on Energy and Natural Resources, United States Senate, Ninety-seventh Congress, First Session, on the Nominations of Guy W. Fiske to be Under Secretary, Department of Energy-William A. Vaughan to be Assistant Secretary for Environmental Protection, Safety, and Emergency Preparedness, Department of Energy-Rayburn Hanzlik to be Administrator, Economic Regulatory Administration, Department of Energy-Robert C. Horton to be Director, Bureau of Mines, Department of the Interior-and Dallas L. Peck to be Director, Geological Survey, Department of the Interior, September 14, 1981