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Connecticut emissions test: the official wording
Everything in quotation marks here is from 4 sources and was matched to them on November 11, 2026. The quotes are the sources’ words; ours only label them.
On this page: where · how often · fee · new and older vehicles · diesel, electric, hybrid · check a vehicle · sources
What does the text call it?
The following vehicles are exempt from the Connecticut Emissions Program:
The page we point to: Connecticut DMV, Emissions testing program.
Where does it apply?
The lines we quote for Connecticut name no county or area. These are the lines we hold on who is covered:
The State of Connecticut requires testing on most vehicles.
Testing is available through a network of privately owned automotive service facilities conveniently located throughout Connecticut.
How often is the test?
Vehicles are tested every two years by a network of more than 200 privately owned automotive service facilities located at convenient locations throughout the state.
What does the test cost?
The emissions test fee is $20.00.
What does the text say about new and older vehicles?
Listed under:
The following vehicles are exempt from the Connecticut Emissions Program:
Vehicles younger than four model-years old
Listed under:
The following vehicles are exempt from the Connecticut Emissions Program:
Model year 2001 and older vehicles
What about diesel, electric and hybrid vehicles?
Every current line we hold for Connecticut that uses the word diesel, electric or hybrid. Some are about one place or one kind of test; each speaks for itself.
Listed under:
The following vehicles are exempt from the Connecticut Emissions Program:
Full electric-powered vehicles (non-hybrid)
OBD Plus Test Centers can perform all emissions testing except on those diesel-powered vehicles from model year 1996 or older.
What about heavier vehicles?
Listed under:
The following vehicles are exempt from the Connecticut Emissions Program:
Vehicles with a gross vehicle weight rating of 10,001 pounds or more
What else does the text say?
State law requires DMV to assess a $20 late fee to the owner of a vehicle who did not meet the deadline to complete required emissions testing.
You will receive an official notification postcard at least 45 days in advance of your vehicle inspection due date.
A vehicle failed an emissions test and didn’t have the vehicle retested within 60 days.
Check a vehicle against these quotes
Enter a model year, a fuel and a weight rating. The checker repeats the quotes above and, where a figure can be compared, says where your entry falls against it. It does not decide anything about your vehicle.
Where do these quotes come from?
- Connecticut DMV, Emissions testing program (portal.ct.gov; state agency page; read November 11, 2026)
- Connecticut DMV, Emissions Testing Late Fee (portal.ct.gov; state agency page; read November 11, 2026)
- CT Emissions, Connecticut Emissions Program home page (ctemissions.com; program site we treat as contractor-run, linked from Connecticut DMV, Emissions testing program; read November 11, 2026)
- CT Emissions, Explore Program Information (ctemissions.com; program site we treat as contractor-run, linked from Connecticut DMV, Emissions testing program; read November 11, 2026)
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