Massachusetts
What is the vehicles covered / exempt for Massachusetts?
For Massachusetts, vehicles covered / exempt is all motor vehicles registered in Massachusetts; 2. any motor vehicle owned or operated by a federal agency in Massachusetts (regardless of whether such vehicles are registered in Massachusetts); and 3. diesel vehicles with a GVWR greater than 10,000 pounds operating on Commonwealth roads but not registered in Massachusetts; program / authority is Emissions Inspections, verified against its source on 2026-08-24.
1. all motor vehicles registered in Massachusetts; 2. any motor vehicle owned or operated by a federal agency in Massachusetts (regardless of whether such vehicles are registered in Massachusetts); and 3. diesel vehicles with a GVWR greater than 10,000 pounds operating on Commonwealth roads but not registered in Massachusetts.
— law.cornell.edu, retrieved 2026-08-24
- State
- Massachusetts our reading
- Vehicles covered / exempt
- all motor vehicles registered in Massachusetts; 2. any motor vehicle owned or operated by a federal agency in Massachusetts (regardless of whether such vehicles are registered in Massachusetts); and 3. diesel vehicles with a GVWR greater than 10,000 pounds operating on Commonwealth roads but not registered in Massachusetts. verified
- Program / authority
- Emissions Inspections
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
The same source also states
(b) The following motor vehicles are exempt from the emissions inspection: 1. any diesel vehicle with a model year earlier than 1984; 2. any light duty diesel vehicle with a model year earlier than 1997 or 15 or more model years old; 3. any medium duty diesel vehicle with a GVWR of not more than 10,000 pounds and with a model year earlier than 2007 or 15 or more model years old; 4. any light duty nondiesel vehicle with a model year earlier than 1996 or 15 or more model years old; 5. any medium duty nondiesel vehicle with a model year earlier than 2008 or 15 or more model years old; 6. any heavy duty nondiesel vehicle not equipped with an OBD system or 15 or more model years old;
— law.cornell.edu, retrieved 2026-08-24
Source
- law.cornell.eduhttps://www.law.cornell.edu/regulations/massachusetts/310-CMR-60-02