Emissions Testing in New Hampshire

Last updated on April 25th, 2018

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.


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

It is a 1996 model or newer.

It runs on gasoline.

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.

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.


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

Source: http://www.dmv.com/nh/new-hampshire/emissions-testing

Filed under: New Hampshire, Articles

No comment yet, add your voice below!

Add a Comment

Your email address will not be published. Required fields are marked *

Comment *
Name *
Email *