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Vehicle Emissions Testing in New Hampshire

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In New Hampshire, a vehicle emissions OBD test is required for many original registrations, as well as for annual registration renewals. Inspection stickers indicate by what date an emissions test must be completed.

VEHICLES THAT REQUIRE AN EMISSIONS TEST

A car, truck, motor home or RV (recreational vehicle) requires an OBD emissions test when:

  1. It is a 1996 model or newer.
  2. It runs on gasoline.
  3. It is a 1997 model or newer, runs on diesel fuel, and has a manufacturer's gross vehicle weight rating of up to 8500 lbs.

VALIDITY

Emission tests are valid for12 months. A valid test is required to complete an original vehicle registration or registration renewal. Used car dealers are required to issue a valid emissions test for any vehicle they sell. Getting an emissions test is the buyer's responsibility when the vehicle is purchased from a private owner.

EXEMPTIONS

A vehicle is exempt from emissions testing when it is a 1995 model or older.

EMISSIONS TESTING LOCATIONS

Any Authorized Emissions Inspection Station licensed by the State can test your vehicle.

EMISSIONS TESTING FEES

There is no regulation of the fees charged for vehicle inspection. Comparison of prices offered by various Inspection Stations is recommended. See Emissions Fees for details.

EMISSIONS TEST FAILURES

If your vehicle fails the emissions test, you must have the vehicle repaired, after which it must pass the after repairs emissions test. The vehicle can be repaired at the station or elsewhere. This has to be done within 60 days of the initial inspection. The vehicle should be repaired by an OBD trained technician. You can call (603)271-0352 to request an economic hardship waiver if you cannot afford to get the necessary repairs done within 60 days.

ADDITIONAL INFORMATION.

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