W220 Emissions Exemption: Georgia’s 2026 and 2027 Cutoffs

For Georgia’s 2026 registration period, a 2001-or-older Mercedes W220 is exempt from emissions testing by model year. A 2002-or-newer gasoline W220 still needs testing if registered in one of the 13 covered counties, unless another exemption applies. Georgia’s Clean Air Force (GCAF) sets the age exemption at 25 model years or older. GCAF’s testing requirements

If your car is registered outside Georgia, this cutoff does not answer your question. Check the emissions program for your registration jurisdiction; “W220” alone does not establish eligibility.

Check model year, registration year and county

Use the car’s model year, not its build date or the date it was first sold. GCAF states that model year is determined by the VIN. If the paperwork disagrees, resolve that with your county tag office before paying for a test. GCAF guidance

As of November 12, 2026, GCAF has published requirements for both 2026 and 2027 registration. For a gasoline W220 within the program’s weight limit, the age rules work as follows:

W220 model year	2026 registration	2027 registration
2001 or older	Age-exempt	Age-exempt
2002	Testing required in a covered county*	Age-exempt
2003 or newer	Testing required in a covered county*	Testing required in a covered county*

Unless another exemption or approved exception applies. GCAF’s published testing ranges are 2002–2023 for 2026 and 2003–2024 for 2027*, for gasoline-powered cars and light-duty trucks rated at 8,500 pounds GVWR or less. 2026 registration notice · 2027 registration notice

The covered counties are Cherokee, Clayton, Cobb, Coweta, DeKalb, Douglas, Fayette, Forsyth, Fulton, Gwinnett, Henry, Paulding and Rockdale. A W220 registered in another Georgia county is outside this testing requirement. The relevant county is where the car is registered—not where you choose to have it inspected. GCAF requirements and testing guidance

A 2002 W220 becoming exempt for 2027 does not eliminate a test required for its 2026 registration. For overdue renewals, ask the tag office which registration period it is processing; GCAF specifically directs late-registration questions to that office. GCAF registration FAQ

Diesel and other exemption routes

A W220 operated exclusively on diesel is exempt from Georgia emissions testing regardless of this gasoline-vehicle age cutoff. If you have an imported diesel, confirm that its fuel type and model year are correctly recorded. GCAF also identifies gray-market vehicles as a possible non-conforming-status case; import status alone does not establish an exemption for a gasoline W220. Vehicle exemptions · Non-conforming guidance

For an otherwise testable gasoline W220:

• Senior exemption: An owner aged 65 or older may qualify if the vehicle is at least 10 model years old and driven less than 5,000 miles per year, with a working odometer to demonstrate mileage. GCAF’s 2027 notice requires a new application each year.
• Out-of-area extension: Temporary absence may qualify, subject to the program’s requirements; the vehicle must be tested upon return.
• Repair waiver: This is a separate route involving qualifying emissions repairs and other conditions—not an exemption simply because the car is old or expensive to repair.

Check eligibility and obtain approval through GCAF rather than assuming an exception applies. 2026 exception criteria · 2027 exception criteria · Applications and assistance

If your W220 still needs testing

GCAF recommends testing four to six weeks before renewal to leave time for repairs and retesting. The inspection includes an OBD check and a visual catalytic-converter inspection. Diagnose an illuminated check-engine light before presenting the car. GCAF inspection guidance

Clearing codes is not a substitute for repairing the cause. A recent computer reset or battery disconnection can also leave the car unready for its OBD inspection; allow time for readiness checks to complete before testing. GCAF’s preparation advice

If renewal still requests an emissions certificate when your model year qualifies for exemption, contact your county tag office with the VIN and renewal notice before booking a test.