If you run a dealership or manage a fleet in metro Atlanta, emissions testing is part of doing business — but only in certain counties. Georgia requires an annual emissions inspection for most gasoline-powered vehicles registered in 13 metro Atlanta counties. Here’s exactly which counties are covered, which vehicles need a test, and how to keep your inventory compliant without losing a day off the lot.

The 13 Georgia counties that require emissions testing

Georgia’s emissions testing program covers these metro Atlanta counties:

Cobb County — Marietta, Smyrna, Kennesaw
Gwinnett County — Lawrenceville, Duluth, Buford
Fulton County — Atlanta, Sandy Springs, Alpharetta
DeKalb County — Decatur, Tucker, Dunwoody
Cherokee County — Canton, Woodstock
Forsyth County — Cumming
Henry County — McDonough, Stockbridge
Clayton County — Jonesboro, Forest Park
Coweta County — Newnan, Senoia
Douglas County — Douglasville, Lithia Springs
Fayette County — Peachtree City, Fayetteville
Paulding County — Dallas, Hiram
Rockdale County — Conyers

If a vehicle is registered in any of these counties, it generally needs a passing emissions test before its registration can be renewed. Vehicles registered outside these 13 counties are not part of the program.

Which vehicles need an emissions test?

The program applies to most gasoline-powered cars and light-duty trucks (8,500 lbs gross vehicle weight rating or less) registered in a covered county. For dealerships, that means most used gasoline vehicles on your lot will need a current test before they’re sold and registered.

Which vehicles are exempt?

The three newest model years (the cutoff rolls forward every year)
Vehicles 25 model years old and older
Diesel-powered vehicles
All-electric vehicles
Motorcycles
Vehicles registered outside the 13 covered counties

Because the model-year cutoffs shift each year, confirm the current exemption years with the Georgia Clean Air Force before a sale.

How much does emissions testing cost?

At a testing station, prices vary and your team loses time driving inventory back and forth. With Mobile Emission LLC it’s a flat $25 per vehicle — and we come to your lot. Whether it’s a single car or a full fleet, we test on-site and post passing results to the state the same day, with one consolidated invoice.

Frequently asked questions

How often is emissions testing required in Georgia?

Once a year, ahead of each annual registration renewal, for vehicles within the testable model-year range.

Can you test a whole dealership lot at once?

Yes. We handle single vehicles up to full lots and fleets in one scheduled on-site visit.

What if my vehicles are spread across more than one county?

We cover all 13 emissions counties, so we can test inventory across multiple locations.

Need inventory tested? Request a free quote or call (470) 708-5092 — flat $25 per vehicle, no hidden fees.

Which Georgia Counties Require Emissions Testing? (Full List)