Mobile Sources: Light Duty Fleet

Motor Vehicle Inspection & Maintenance (I/M) Program: the DEM and the Division of Motor Vehicles (DMV) are jointly responsible for the administration of the Rhode Island I/M Program. DMV is responsible for the operation and enforcement of the program and DEM is responsible for the environmental aspects of the program.

The Rhode Island I/M Program requires a biennial inspection that includes all light-duty vehicles, 25 years old and newer, up to 8,500 pounds Gross Vehicle Weight Rate (GVWR).

RIDEM assures that the State's motor vehicle I/M program identifies high emitting vehicles and gets them repaired. Visit and for Air Pollution Control Regulation No. 34 for more information.

  • The purpose of the program is to reduce motor vehicle related pollution through inspection and emissions-related repair of gasoline and diesel powered light duty motor vehicles.
  • The program ensures that RI is positioned to comply with the National Ambient Air Quality Standard for Ozone, reduces the amount of particulate matter emitted into the air, and protects human health and the environment.


Low Emissions Vehicle (LEV) Program: requires manufacturers to meet fleet-average emissions targets through the sale of vehicles that emit low levels of pollutants that contribute to ozone formation such as nitrogen oxides (NOx), and other pollutants such as carbon monoxide, carbon dioxide and particulate matter that pose risks to public health.

  • The purpose of the program is to ensure that motor vehicle standards in Rhode Island are consistent with California's Advanced Clean Cars Program (ACCP).
  • Rhode Island incorporated ACCP's rules under its Air Pollution Control Regulation No. 37.


Light Duty Vehicle Greenhouse Gas Emission Standards: A national program that applies to passenger cars, light-duty trucks, and medium-duty passenger vehicles, covering model years 2012 through 2025.

  • The purpose of the program is to improve fuel economy of vehicles, ultimately leading to reduced levels of greenhouse gas emissions.


Zero Emission Vehicles (ZEV): require manufacturers to meet a certain portion of sales with electric, plug-in hybrid-electric, and fuel cell (hydrogen) vehicles.


State Fleet - Alternative Fuel Vehicle (AFV) and Hybrid Electric Vehicle (HEV) Acquisition Requirements: requires the State of Rhode Island to purchase vehicles that provide the best value on a lifecycle cost basis. Visit Alternative Fuel Vehicles and Hybrid Electric Vehicle Acquisition Requirements to see what actions the state is taking. Here you can also find the link to the Executive Order.

  • The purpose of this program is for the state to be the leader and take action to reduce fuel consumption and pollution emissions from state fleet vehicles.