R.I. Gen. Laws § 39-12-15: Filing of contracts by contract carriers — Form of contract.

Every contract carrier by motor vehicle shall file with the administrator a copy of every contract for the transportation of property by motor vehicle in effect in connection with its operations, which shall be in writing and shall be executed by all parties thereto. The period of time during which the contracts shall be in force; the charges for transportation and accessorial services, if any; and the duties and obligations of all parties thereto, shall be specifically stated in the contracts, and the copies shall be kept in the files of the administrator but not opened to public inspection.