R.I. Gen. Laws § 39-3-8: Standards for measurement and testing of service.

The division shall ascertain and fix adequate and serviceable standards for the measurement of the quality, pressure, initial voltage, or other condition pertaining to the supply of the product or service rendered by any public utility, and prescribe reasonable regulations for the examination and testing of the product or service and for the measurement thereof. It shall establish reasonable rules, regulations, specifications, and standards to secure accuracy of all meters and appliances for measurement, and every public utility is required to carry into effect all orders issued by the division relative thereto.