In 1992, when the Act became law, all drivers have been required to have a CDL in order to drive a Commercial Motor Vehicle. The Federal Highway Administration (FHWA) has developed testing standards for licensing drivers. U.S. states are able to issue CDLs only after a written and practical test have been given by the State or approved testing facility. A driver needs a CDL if the vehicle meets one of the following definitions of a Commercial Motor Vehicle (CMV) listed above.