Intelligent Vehicle-highway Systems Program and Commercial Motor Vehicles: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Third Congress, First Session, October 19, 1993

Safeguarding Our Future: Building a Nationwide Network for First Responders : Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Twelfth Congress, First Session, February 16, 2011

Mergers in the Telecommunications Industry: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Sixth Congress, First Session, November 8, 1999

Universal Service: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fifth Congress, First Session, Part 1

Universal Service: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fifth Congress, First Session, Part 2

Tribal Telecommunications Issues: Joint Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, and the Committee on Indian Affairs, One Hundred Seventh Congress, Second Session, May 14, 2002

Spectrum Use and Management: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fourth Congress, Second Session, April 18, 1996

Spectrum Management: Improving the Management of Government and Commercial Spectrum Domestically and Internationally : Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Seventh Congress, Second Session, June 11, 2002

Report of the National Academy of Sciences on the Effectiveness and Impact of Corporate Average Fuel Economy (CAFE) Standards: Joint Hearing Before the Committee on Commerce, Science, and Transportation and the Committee on Energy and Natural Resources, United States Senate, One Hundred Seventh Congress, First Session, August 2, 2001, Volume 4

Effects of Changing Federal Policies on Regional Economic Growth: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Third Congress, First Session, April 16, 1993

Nomination of Roberta Lee Gross to be Inspector General of the National Aeronautics and Space Administration: Hearing of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fourth Congress, First Session, June 13, 1995

Public Policy Options for Encouraging Alternative Automobile Fuel Technologies: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Ninth Congress, First Session, November 15, 2005, Volume 4

Advanced Manufacturing and Biotechnology: Field Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Eighth Congress, First Session, April 14, 2003

International Fisheries: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Third Congress, Second Session, July 21, 1994

Nomination of Arnold G. Holz to be Chief Financial Officer of NASA: Hearing Before the Committee on Commerce, Science, and Tranpsortation, United States Senate, One Hundred Third Congress, Second Session, April 13, 1994

Nomination of Robert W. Cobb to be Inspector General of the National Aeronautics and Space Administration: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Seventh Congress, Second Session, March 13, 2002

H.R. 1542, Internet Freedom and Broadband Deployment Act of 2001: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Seventh Congress, Second Session, March 20, 2002.., Volume 4

June 10, 1999 Olympic Pipe Line accident: field hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Sixth Congress, second session, March 13, 2000, Volume 4

June 10, 1999 Olympic Pipe Line accident: field hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Sixth Congress, second session, March 13, 2000, Volume 4

S. 268, the National Parks Overflights Act of 1997: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fifth Congress, First Session, July 31, 1997