Inspection Stations and Location
Inspections can be performed at any of the Authorized Safety and Emissions Inspection Stations.
The fee for a RI Safety and Emissions Inspection is $55.00. If your vehicle fails the initial inspection, you will be entitled to a free retest within 30 days at the same station.
Vehicle Inspection Requirements
All motor vehicles: All motor vehicles
registered in Rhode Island with a GVWR (Gross Vehicle Weight Rating)
of 8500lbs or less are required to pass a safety and emissions inspection no less
than once every 2 years.
New vehicles are required to be inspected within two years from the date of purchase,
or before the vehicle accumulates 24000 miles, whichever comes first.
Used (newly registered) vehicles:
Used vehicles applying for registration are required to have a valid RI Inspection
sticker or pass a RI safety and emissions inspection within 5 days of the date of
Diesel vehicles with a GVWR of 8500lbs or less are required to be tested for Safety
and Emissions. Vehicles 1997 and newer may be tested at any Authorized Safety and
Emissions Inspection Station. Vehicles 1996 and older must pass a diesel
opacity test at one of the Diesel Opacity Stations.
Vehicles registered as antiques with antique license plates are limited in their scope of use and are exempt from safety and emissions testing.
are exempted from emissions inspection but are required to pass a safety inspection.
25 years old or older:
Vehicles that are 25 years
old or older
must undergo inspection for safety and emissions. However, these vehicles will not
be failed if they do not pass emissions standards.
Classic Cars: Vehicles that are insured
as Classic vehicles may receive an alternate type of inspection.
Vehicles Out of State: Vehicles out of State during the time that
inspection is required (College students, etc) must contact the Safety and Emissions
office of the RI DMV at 401-462-5890 to arrange for acceptance of another state's proof
of similar inspection or arrange for an extension of the inspection requirement
Safety Inspection Process
Safety Inspection: The vehicle must pass a safety inspection
in accordance with the procedure and standards set forth in the RI Official Manual
for Vehicle Inspection. This will include inspection of but will not be
limited to the following items:
- Master cylinder
- Parking lamps
- Parking brakes
- Plates and plate light
- Registration certificate
- Seat belts
- Side market lamps
- Springs, torsion bars, shocks
- Steering, alignment and suspension
- Stop lamps
- Tail lamps
- Universal joints
- Wheel safety chock blocks
- Windshield wipers
- ABS Light
- Air bag light
- Back up lamps
- Ball joints
- Body items
- Brakes (ABS)
- Brake drums and discs
- Brake failure warning lamp
- Brake lining or pads
- Brake performance
- Brake pedal reserve
- Bumper (rear end protection)
- Check engine light
- Clearance lamps
- Directional signals
- Doors (front latches)
- Emergency brake
- Exhaust system
- Fenders and flaps
- Floor and other panels
- Fuel tank - cap
- Hazard switch
Emissions Inspection Process
emissions test performed on the vehicle will be determined by the vehicle model
year and equipment (drive type, traction control etc.) the vehicle will receive
one of the following test types:
OBD inspection evaluates your vehicle's emissions status via its onboard computer.
The OBD inspection occurs through the connection of the OBD-II SAE standardized
vehicle port to the inspection analyzer.
An on-board diagnosis system inspection failure occurs
when either: Current Diagnostic Trouble Codes are indicated and the Malfunction
Indicator Light is commanded on.
The malfunction indicator light (MIL) does not illuminate
at all when the vehicle is in the key-on/engine-off condition, even if no diagnostic
trouble codes are present and the MIL has not been commanded on.
For 2001 and newer vehicles, more than one readiness monitor in a vehicle's on-board computer is not
set as ready; or
For 1996-2000 vehicles, more than two readiness monitors in a vehicle's on-board
computer are not set as ready.
Connection: To start
the procedure, the inspector connects a communication cable from emissions analyzer
to the Diagnostic Link Connector located in your vehicle. The emissions analyzer
simply reads data from your vehicle's computer; no changes are made to your vehicle
or its data.
Communication: If the
vehicle's OBD system is not communicating with the inspection analyzer do to a vehicle
defect it is cause for failure.
About Readiness: The
computer in your vehicle performs diagnostic tests on certain emissions systems
while you are driving. These system monitors are usually "Ready" or "Complete",
unless there's a pending problem with a particular system. Sometimes system monitors
become not ready if the vehicle's battery has been disconnected or if the vehicle
computer's memory has been erased. As part of the OBD-II test, the analyzer checks
to see how many of these system monitors are "not ready", If more than one (1) monitor
MY 2001 and more than two (2) monitors MY 1996-2000 read "not ready", then the vehicle
will fail the OBD-II test.
Maintain Your OBD-II Vehicle's Readiness Status:
Some vehicles require extensive driving to reset certain system readiness monitors.
Do not disconnect the battery on your vehicle. If your vehicle is in for service,
ask your technician not to clear the computer's memory, since this will only unset
the system readiness monitors and result in your vehicle failing the OBD-II test.
About Your OBD-II Vehicle's MIL:
If your vehicle's MIL is flashing or blinking, you should have the vehicle serviced
as soon as possible. The flashing light may indicate that there is an engine misfire,
and extensive driving with a misfire could damage your vehicle's catalytic converter.
The Enhanced (Dynamometer) Emissions Inspection Procedure
enhanced (dynamometer) emissions inspection procedure entails driving the vehicle
through a transient drive cycle to simulate driving conditions while measuring exhaust
contaminants. The vehicle fails the inspection if measured contaminants exceed defined
The Two-Speed Idle
Emissions Inspection Procedure
two-speed idle emissions inspection procedure entails running the vehicle for a
period of time at each of two engine speeds while measuring exhaust contaminants.
The vehicle fails the inspection if measured contaminants exceed defined limits.
the OBD inspection does not apply, diesel vehicles subject to this inspection program
receive the Loaded Opacity Inspection.
Loaded Opacity Emissions Inspection Procedure:
loaded opacity emissions inspection procedure is performed on the dynamometer. The
vehicle is driven to a speed of thirty miles per hour, with the load increasing
as the vehicle increases speed. The vehicle fails the inspection if measured opacity
exceeds defined limits.
diesel vehicles should be tested with OBD. If the vehicle is diesel and can not
be tested using OBD, it will be tested with the dynamometer opacity test.
If the vehicle can not be tested on a dynamometer (such as all wheel drive
vehicle), it will not be subjected to an emissions test.
What If I Fail
failures are entitled to a free retest within 30 days at the same station. Please
refer to the What if You Fail page for information on Certified Repair Technicians,
Waiver Programs and additional information.
Rules and Regulations
more information about the Rhode Island inspections, please refer to the State of
Rhode Island Department
of Motor Vehicles
and Department of Environmental Management's regulations, posted at:
RHODE ISLAND MOTOR VEHICLE SAFETY AND EMISSIONS CONTROL REGULATION NO.1
RHODE ISLAND AIR POLLUTION CONTROL
REGULATION NO. 34
RHODE ISLAND OFFICIAL MANUAL FOR VEHICLE INSPECTION