# Vermont — Vehicle emissions testing: which counties require it, in which states For Vermont, counties where testing is required is on a statewide basis; how often is all motor vehicles be inspected annually; program / authority is Vermont’s Vehicle Emissions Inspection and Maintenance Program, verified against its source on 2026-08-19. - **State:** Vermont _(our reading, not quoted from the source)_ - **Counties where testing is required:** on a statewide basis _(verified: appears in the quote below)_ - **How often:** all motor vehicles be inspected annually _(verified: appears in the quote below)_ - **Program / authority:** Vermont’s Vehicle Emissions Inspection and Maintenance Program - **Vehicles covered / exempt:** gasoline and diesel powered vehicles that are 16 model years old or newer, having a gross vehicle weight rating of 8,500 pounds or less, must have an inspection of the OBD system _(also on this page, in the second passage quoted below)_ ## What the source says > The State of Vermont requires, on a statewide basis, that all motor vehicles be inspected annually. There are approximately 1,100 official inspection stations that are licensed to perform vehicle inspections. The annual vehicle inspection includes both a safety check and an emissions check. ## The same source also states > In addition to the safety equipment inspection, gasoline and diesel powered vehicles that are 16 model years old or newer, having a gross vehicle weight rating of 8,500 pounds or less, must have an inspection of the OBD system to ensure that it’s working properly. Source: https://dec.vermont.gov/air-quality/mobile-sources/vehicle-emissions-inspections ## Source - https://dec.vermont.gov/air-quality/mobile-sources/vehicle-emissions-inspections Last verified: 2026-08-19. Review by: 2027-08-19. Part of [Vehicle emissions testing: which counties require it, in which states](https://referencesource.org/vehicle-emissions-testing-by-state/).