Witnesses include: Michael Amarosa, V.P. Public Affairs, TruePositions, Inc.; David K. Aylward, Exec. Dir., ComCARE Alliance; David L. Bibb, Deputy Assoc. Admin., Office of Governmentwide Real Property Policy, Gen. Services Admin.; John R. Melcher, Dir. MIS Greater Harris County 911; & Jeffrey Michael, Chief, Emergency Medical Services Div., National Highway Traffic Safety Admin. Also, prepared statement submitted for the record by Carl B. Hilliard, Jr., General Counsel to the Ad Hoc Alliance for Public Access to 911.Tavzin, W. J. Billy is the author of 'Wireless Communications and Public Safety Act of 1998 Hearing Before the Committee on Commerce, U.S. House of Representatives', published 1998 under ISBN 9780788184499 and ISBN 0788184490.