R.I. Gen. Laws § 39-13-12.1
Every motor carrier engaged in transporting passengers over the highways of this state for compensation in interstate commerce, shall file an application with the administrator for a permit of registration. The application shall be accompanied by a fee of twenty-five dollars ($25.00). Upon a showing by the carrier that it has been authorized by the Interstate Commerce Commission to conduct an operation into, from, within, or through this state, and that the carrier is in compliance with all other requirements of this chapter, the administrator shall issue a permit of registration to the carrier as soon as possible and the carrier shall not so operate in interstate commerce unless and until the permit of registration shall have been issued. The motor carrier shall be required to file with the administrator only that portion of its interstate authority permitting operations within the borders of this state, and the motor carrier shall not be required to file with the administrator emergency or temporary operating authority having a duration of thirty (30) consecutive days or less, if the carrier has registered its interstate authority and registered and identified its vehicles under the provisions of this chapter. The administrator shall prescribe reasonable rules and regulations governing the registration of interstate authority. Each intrastate motor carrier holding a common-carrier certificate from the administrator is hereby granted the right to operate motor vehicles in interstate commerce in the transportation of passengers for compensation, as authorized by the Interstate Commerce Commission without obtaining a permit of registration from the administrator.
R.I. Gen. Laws § 39-13-12.1