Welcome to the Connecticut Emissions Program
Emissions Test Centers will be closed on Friday, July 3rd and Saturday, July 4th in observance of Independence Day

The State of Connecticut requires emissions testing every two years on all vehicles except:

  • 2012, 2013, 2014 and 2015 model year vehicles;
  • Model year 1990 and older vehicles;
  • Vehicles with a gross vehicle weight rating of 10,001 pounds or more;
  • Composite Vehicles (vehicle must be titled as a composite vehicle);
  • Full electric-powered (non-hybrid);
  • Bicycles with motors attached;
  • Motorcycles;
  • Certain vehicles registered but not designed primarily for highway use;
  • Farm vehicles;
  • Class-1 School Buses;
  • Vehicles with Dealer, Repairer, or Transporter Plates (only for the purpose of transportation during wholesale or auction).