Relating to the route designation for the issuance of a permit for the movement of oversize and overweight vehicles in certain counties.

HB 1978 designates specific routes for permits allowing oversize and overweight vehicles to move between international bridges and ports in Cameron and Hidalgo counties. It specifies direct routes using highways like US 77, US 83, FM 509, and State Highway 4 for accessing the Port of Brownsville and Port of Harlingen. The bill requires the transportation commission to designate these routes with port authority consent, while allowing flexibility to choose alternative paths through consultation. This directly affects commercial carriers transporting cargo through border counties and port authorities managing permit issuance.