R.I. Gen. Laws § 31-23.1-6: Employees’ retirement.

The employees’ retirement system of the state of Rhode Island may make an agreement with the vehicle equipment safety commission for the coverage of the commission’s employees pursuant to article III(f) of the compact. The agreement, as nearly as may be, shall provide for arrangements similar to those available to the employees of this state, and shall be subject to amendment or termination in accordance with its terms.