Hearing on the nominations of Rhea Sun Suh to be Assistant Secretary for Fish and Wildlife and Parks, U.S. Department of the Interior; Victoria Baecher Wassmer to be Chief Financial Officer, U.S. Environmental Protection Agency (EPA); Roy K.J. Williams to be Assistant Secretary of Commerce for Economic Development, U.S. Department of Commerce; and Thomas A. Burke to be Assistant Administrator for Research and Development, EPA : hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Thirteenth Congress, first session, December 17, 2013.