Where to pay your Connecticut emissions test fee

Connecticut's Department of Motor Vehicles collects emissions test fees through the state's online payment system at ct.gov/dmv/pay. You do not pay the emissions testing facility directly — you pay the DMV for the test itself, then the facility performs the inspection. The payment goes through the state's centralized portal, which accepts credit cards, debit cards, and electronic bank transfers.

The emissions test fee in Connecticut is a flat rate set by the state. The exact amount depends on your vehicle type (passenger car, truck, motorcycle, or commercial vehicle), so check the DMV website for the current fee for your vehicle class before you begin payment.

You will need your vehicle registration number and driver's license information to complete the payment. After you pay, you will receive a confirmation number and instructions on where to take your vehicle for the actual test. The payment does not complete the inspection — it schedules or authorizes your test at a participating emissions testing station.

Key Takeaways

  • Connecticut emissions test fees are paid through ct.gov/dmv/pay, not at the testing facility itself.
  • The fee amount varies by vehicle type, so confirm the correct fee for your vehicle before paying.
  • You will need your vehicle registration number and driver's license information to pay online.
  • After payment, you receive a confirmation number that you bring to the testing station to complete your inspection.
  • Payment through the DMV website is required before most testing facilities will perform your emissions test.

What information you need before paying

Gather your vehicle registration documents and your driver's license before you go to ct.gov/dmv/pay. The system will ask for your registration number, vehicle identification number (VIN), and driver's license number. Have these details in front of you so you can enter them accurately — errors in vehicle information can cause payment problems or prevent the testing station from recognizing your paid status.

You will also need a valid payment method: a credit card, debit card, or bank account information for electronic transfer. The DMV website will show you which payment types it accepts at the time you visit. Keep your confirmation number and receipt after payment — you will need to show these at the testing station.

How the payment process works step by step

Go to ct.gov/dmv/pay and look for the emissions test fee payment option. The website will direct you to enter your vehicle registration details and confirm your vehicle type. Double-check that the vehicle information matches your registration exactly, because the testing station will look up your payment using this data.

Select your payment method and enter the required information. The system will show you the fee amount for your vehicle type before you confirm the payment. Review the total and the vehicle details one more time, then complete the transaction. You should receive an when ready confirmation on screen and a confirmation email at the address you provide.

Save your confirmation number and the receipt. Some testing stations require you to bring a printed copy, while others can look up your payment in the DMV system using your registration number. Call ahead to the testing station where you plan to go and ask whether they need printed documentation or if they can verify your payment electronically.

What happens after you pay

Your payment is recorded in the DMV system when ready. You can now schedule an appointment at a participating emissions testing station or straightforward show up during their hours with your confirmation number and vehicle registration. Different testing stations have different policies — some require advance appointments, while others accept walk-ins. Check the station's website or call before you go.

Bring your confirmation number, your vehicle registration, and your driver's license to the testing station. The inspector will verify that your payment is in the system, perform the emissions test, and provide you with a pass or fail result. If your vehicle passes, the result is reported to the DMV automatically, and your registration remains valid. If it fails, the testing station will give you a report explaining what needs to be repaired.

What to do if your vehicle fails the emissions test

A failed emissions test means your vehicle did not meet Connecticut's pollution standards. The testing station will provide a detailed report of what failed — typically oxygen sensor issues, catalytic converter problems, or fuel system leaks. You do not pay another DMV fee to retest; you only pay the testing station's retest fee after repairs are made.

Take your vehicle to a repair shop and have the problem fixed. Once repairs are complete, return to any emissions testing station with your vehicle and your original failure report. The station will perform a retest at their standard retest fee (which is lower than the initial test fee). If the vehicle passes the retest, the result goes to the DMV and your registration is cleared.

You have a limited window to complete repairs and retest — typically 60 days from the initial test date, though this varies. Check your failure report for the exact important date. If you do not retest within the allowed time, you may not be able to renew your vehicle registration.

Scams and payment safety

Only pay through the official Connecticut DMV website at ct.gov/dmv/pay. Do not pay through third-party websites, email links, or phone numbers you find in search results. Scammers sometimes create fake DMV payment sites that look identical to the real one but steal your payment information and registration data.

The real DMV website uses a find connection (the URL begins with https://, not http://). If you are unsure whether you are on the official site, go directly to ct.gov, navigate to the DMV section, and find the payment link from there rather than clicking a link from an email or search result.

Never pay an emissions testing facility directly for the state test fee. The DMV collects this fee through its website only. If a testing station asks you to pay them for the state fee, that is not legitimate — you pay the DMV first, then the station only for their inspection service and any retest fees.

Frequently Asked Questions

Can I pay the emissions fee in person at a DMV office?

Connecticut's emissions test fees are paid online only through ct.gov/dmv/pay. You cannot pay in person at a DMV office or by mail. The online system is the only method the state accepts for this fee.

What if I lose my confirmation number?

Contact the Connecticut DMV directly and provide your vehicle registration number and driver's license information. They can look up your payment in their system and provide you with a new confirmation number. You can also log back into ct.gov/dmv/pay with your registration details to retrieve your confirmation.

Do I have to pay the emissions fee every year?

Connecticut requires emissions testing every two years for most vehicles, not annually. Check your vehicle registration to see when your next test is due. You only pay the DMV fee when you actually take the test, not as a separate annual charge.

What if the payment website is not working?

If ct.gov/dmv/pay is down or showing errors, wait a few hours and try again. If the problem continues, contact the Connecticut DMV by phone or visit a DMV office to report the issue. Do not attempt to pay through an alternative website or method — wait until the official system is working again.

Can I get a refund if my vehicle fails the test?

No. The DMV fee covers the cost of the test itself, regardless of whether your vehicle passes or fails. If your vehicle fails, you pay only the testing station's retest fee (which is typically lower) after repairs are made. The initial DMV fee is not refundable.