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Emissions Testing Tips

Preparation is key to ensuring you pass your annual emissions test.

An emissions inspection is valid for 12 months or one registration renewal, by the same owner. Georgia's Clean Air Force (GCAF) recommends that motorists test their vehicle four to six weeks prior to the registration renewal date (the vehicle owner's birthday) to allow for any needed repairs. Vehicles can be tested well in advance if the owner will be out of the area at the time of registration.

Preparation

GCAF recommends the following to prepare for your test:

  • The most common reasons for emissions test failures include: a malfunction in the components of the vehicle that regulate the fuel/air ratio such as the oxygen sensor and the EGR valve; a dirty air filter; misfiring spark plugs; leaks in the vacuum system; or a poor-fitting fuel cap. Many of these components can be checked and repaired during routine tune-ups. Following the manufacturer's recommended maintenance schedule.

  • Have your oil changed regularly.

  • Replace your fuel cap securely after filling up. On 1996 and newer model year vehicles, the "Check Engine" light may illuminate as a result of a loose fuel cap. If the "Check Engine" light is illuminated, try tightening the fuel cap until it clicks, then drive the vehicle until the light turns itself off. If it does not turn off, take your vehicle to a qualified repair technician.

  • Keep the sealing surfaces of your fuel cap clean and in good condition.

  • Keep your tires properly inflated.

  • Check belts and hoses for wear.

  • A transmission problem is directly related to the emissions control system and can trigger the "Check Engine" light to illuminate. A diagnostic analysis will yield a transmission code that will help identify the transmission component(s) needing repair. Transmission malfunctions can prevent a vehicle from running efficiently, increasing emissions above federal certification limits.

  • Before seeking repairs, research any recalls, technical service bulletins (TSBs), and manufacturer warranties regarding your emissions control system.

Note: Federal law requires emissions control systems on 1995 and newer model year vehicles to be warranted by the manufacturer for two years or 24,000 miles. Federal law also requires the OBD computer and catalytic converter on 1995 and newer vehicles to be warranted by the manufacturer for eight years or 80,000 miles. Many vehicle manufacturers provide extended warranty coverage beyond what is required by federal law. Consult your vehicle owner's warranty manual for coverage information.

Testing Tips

Test Early

Georgia's Clean Air Force (GCAF) recommends all motorists test their vehicle four to six weeks prior to the registration renewal date (the vehicle owner's birthday). Why?

  • Extra time. Testing early allows failing motorists plenty of time to repair their vehicle and receive a passing retest before the registration expires. Vehicles can be tested well in advance if the owner will be out of the area at the time of registration.

  • Readiness. A common reason for emission test failures is because a vehicle is "Not Ready." In most cases, in order for a vehicle to become "Ready," a one to two week drive cycle will need to be completed. If the drive cycle does not remedy the problem, repairs may be needed.

  • Unnecessary repairs. If you receive improper repairs, fail your retest, and must return for additional work on your vehicle, testing early provides extra time before your registration expires.

  • 30-day free retest. If you fail your emissions test, you may receive a free retest at your original testing station for 30 days (30 days includes the day of your first test and expires at the same time of day of the original test occurred). Take advantage of your free retest before your tags expire.

  • Tickets. Motorists driving with expired tags will most likely receive tickets from local law enforcement. Test early to avoid this.

Avoid a Long Wait

Tips to avoid heavy wait times for your annual emissions test:

  • Avoid high traffic times such as before work, after work or during the lunch hour, if possible.

  • Avoid the first few days and last few days of the month, Mondays, and the day before or after any holiday.

  • Stick to the middle - the middle of the month, middle of the week, mid-morning or mid-afternoon.

  • Avoid congested, high traffic areas during peak rush hour.

  • Contact your nearby testing station and ask for its recommendation on bringing your vehicle in.

  • Your station of choice may take appointments. Call and ask.

  • Seek referrals from friends and relatives who can advise on stations with quick service and minimal wait times.

  • Do not wait until the last minute. This limits your options.

Registration Tips

General Tips

There is no need to mail the results of your emissions inspection because they are transmitted electronically to the tag office.

When renewing online, the system will search for a current, valid inspection. If one is detected, you will be allowed to complete your renewal without having to enter the certificate number from the vehicle inspection report (VIR). Should you have further questions regarding your registration, please contact your tag office for assistance.

A hard copy of your emissions test is not required to complete your registration.

However, we recommend keeping a copy of your passing vehicle inspection report (VIR) for future reference.

Renew Online

Save time by using online resources.

License plates can be renewed online using DRIVES e-Services, at a self-serve kiosk (if your county participates) or at your county tag office.