Rhode Island General Laws Title 31. Motor and Other Vehicles § 31-47.2-2. Inspection requirement

(a) The administrator of the division of motor vehicles shall, at the direction of the director of the department of revenue and in coordination with the department of environmental management, establish rules and regulations and develop testing techniques and emission standards for motor vehicles subject to the provisions of this chapter.

(b) Motor vehicles subject to this chapter shall be determined by regulation, and shall include, but not necessarily be limited to, all diesel powered trucks and buses of all model years and over eight thousand five hundred pounds (8,500 lbs.) gross vehicle weight rating that operate on the highways of Rhode Island.

(c) Standards for opacity of emissions shall be promulgated for all subject vehicles.

(d) In establishing such standards, the administrator shall review standards in effect in other states in the northeast United States and to the extent practicable shall establish standards consistent with standards in other states.

(e) Emissions inspections may be performed at roadside or in conjunction with any safety or weight inspection.

(f) Any motor vehicle which is inspected and found not to comply with the standards for heavy-duty diesel motor vehicle emissions shall be repaired within forty-five (45) consecutive calendar days after the inspection so as to comply with the standards for heavy-duty diesel motor vehicle emissions, or not be operated on the highways of the state.