Modifying certain responsibilities of the commissioner of transportation relating to appearances on public transportation matters; requiring the commissioner to cooperate with federal agencies to harmonize state and federal transportation regulations, authorizing the commissioner to conduct joint hearings with federal agencies, to approve and establish freight rates and charges departing from the distance principle and to nominate members to joint boards as provided by federal acts; transferring certain responsibilities relating to motor or common carriers from the transportation regulation board (TRB) to the commissioner; specifying certain phrase or term change and renumbering instructions to the revisor of statutes; repealing the transportation regulation board and certain provisions relating to the safe operation of trains, the removal or abandonment of railroad tracks and the regulation of railroad stations and terminals and a certain rule (ra)