Which Vehicles Are Affected
All New Hampshire vehicles still require an annual safety inspection.
In addition to the normal safety checks, 1996 and newer model year
light-duty gasoline-fueled passenger vehicles (8500 lbs GVWR and
less) and 1997 and newer model year light-duty diesel passenger
vehicles (8500 lbs GVWR and less) must have an OBD test as part
of the inspection process. In order to perform this test, those
cars are connected to the NHOST inspection unit via the standardized
OBD port. The inspection unit communicates with the vehicle's OBD
system to determine whether or not the monitors are working properly
and if they are detecting any problems.
Where To Get Your Vehicle Inspected
All New Hampshire public, automobile inspection stations are required
to use the NHOST inspection equipment. It is a good idea to call
your station of choice ahead and verify fees charged. Click on the
inspection fees link below for a list of inspection stations and
their fees where provided. Click here for the List of Inspection Fees
Vehicle Owner's Responsibilities
As the vehicle owner, it is your responsibility to ensure the vehicle
complies with inspection requirements. Just as you are required
to correct any safety issues with the vehicle before it will pass
the safety inspection, you are also required to correct any OBD
system problems before you can pass the inspection and receive an
The OBD system is installed on the vehicle to ensure that it
runs smoothly, lasts longer and releases as few pollutants as possible.
Repairing problems sooner rather than later could save you money
in repairs and at the pumps.