All new passenger vehicles sold and registered in Massachusetts need to meet California emission standards.

Regulations

Web page

What you need to know before buying a new car

Web page

Program contact

Ngoc Hoang Tran
617-292-5762
ngoc.hoang.tran@state.ma.us

Registering Model Year 2004 Diesel Passenger Vehicles and Light-Duty Trucks

Some of these vehicles are not California-certified, so cannot be registered in Massachusetts.
Web page

Importing a vehicle from another state or country

What you need to know about vehicle emission requirements if you are moving to Massachusetts. 
Web page