Protecting Oregon's Environment
Oregon State Seal
Oregon Department of Environmental Quality

Air Quality

Vehicle Inspection Program (VIP)

Station locations
and hours:

Portland Area
Medford Area

Station Closures:
Portland Area
Medford Area

What's Tested:
Vehicles, boundaries
Preparing to Test:
Fees, renewals
Failed Test?
For Dealers, Fleets, Repair Shops
Purpose of Testing
Q&A on Volkswagen news

Prepare for the test

Before the test

  1. Emission equipment must be intact and functioning.
  2. Make sure your vehicle does not smoke.
  3. Make sure your vehicle is in good working condition. Follow recommended maintenance schedules for your vehicle, make sure you have good brakes, tires are inflated, etc.
  4. Drive enough miles before the test to completely warm up your engine and catalytic converter.
  5. While waiting for the test, leave your engine running in neutral or park.
  6. Please leave your pets at home.
  7. No smoking in the testing lanes.
  8. Please turn off cell phones in the testing lane.
  9. 1996 and newer vehicles with On-Board Diagnostics must be at "Ready" status.*
  10. Trailers, towed vehicles or other mobile equipment must be disconnected from the vehicle prior to testing.

Note: Vehicles taking the OBD test that have been recently repaired or reset may need to complete a drive cycle before OBD statuses are "Ready". Contact an authorized service provider for more information on OBD and drive cycles.

DEQ Emissions Test Fee

Your emissions test fee is separate from your DMV registration fees. In most cases you can pay both fees at a DEQ testing station if an emissions test is required and your vehicle passes the test. DEQ accepts cash, money order or PIN-less Debit/Credit card (VISA, MasterCard or Discover) ONLY. Checks, travelers checks, food stamps or any other type of payment is NOT accepted.

  • The testing fee in the Portland area is $21.
  • The testing fee in the Rogue Valley is $10.
  • There is no charge if your vehicle does not pass the emissions test.

About the test

The type of emissions test taken will depend on the year of your vehicle. Each of the tests takes about five minutes. All 1975-1995 Vehicles are monitored for carbon monoxide and hydrocarbon emission. All vehicles are monitored for smoke. 1996 and newer vehicles receive the On-Board Diagnostics test which queries the vehicle's on-board computer to ensure that pollution control equipment is working properly.

Renewing your registration

If your vehicle passes a DEQ emissions test you can renew registration and receive your DMV tags at the DEQ inspection stations. DEQ cannot issue DMV renewal tags without administering a test. Be sure to bring:

  • Your entire (both parts) DMV registration renewal form with sections 1 and 2 completed. One of the registered owners must sign the renewal.
  • Cash or Credit/Debit (VISA, MasterCard or Discover) to pay for the emissions test AND your DMV registration fees.

After passing the test, you will receive the certificate needed to renew your registration. The certificates are valid for 180 days. Once it is used to register the vehicle, you do not need to test again for two years.

Did you lose the DMV information mailed to you? 

[print version]

For questions or feedback on the Vehicle Inspection Program, visit our Question and Comment page or call one of our regional offices:

Tech Center hours: 8:00 a.m. - 5:00 p.m.
Portland Area: 503-229-5066
Medford Area: 541-776-6145
Toll Free in Oregon: 877-476-0583
Hearing Impaired: 711

For more information about Air Quality call 503-229-5359 or email.

Oregon Department of Environmental Quality
Headquarters: 811 SW Sixth Ave., Portland, OR 97204-1390
Phone: 503-229-5696 or toll free in Oregon 1-800-452-4011
Oregon Telecommunications Relay Service: 1-800-735-2900  FAX: 503-229-6124

The Oregon Department of Environmental Quality is a regulatory agency authorized to protect Oregon's environment by
the State of Oregon and the Environmental Protection Agency.

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