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

Air Quality

Vehicle Inspection Program (VIP)

Portland Area:
Station locations and hours
Station Closures
Vehicles Required to Test

Medford Area:
Station locations and hours
Station Closures
Vehicles Required to Test

Inspection Boundary Lookup
Preparing to Test
Failed Vehicle
For Dealers, Fleets, Repair Shops
Purpose of Testing
Vehicle Testing Methods
Q&A on Volkswagen news

VIP Station Directions and Test Instructions

Please return to the VIP home page and choose a location for hours and directions to the station.

You need to take the

Please return to the VIP home page and choose the year of your car to learn what type of test will be done.

Before the Test

  1. All vehicles should be in good working condition.
  2. Emission equipment must be intact and functioning.
  3. Make sure your vehicle does not smoke.
  4. 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.
  5. Drive enough miles before the test to warm up your engine and make sure your vehicle is at normal operating temperature.
  6. While waiting for the test, leave your engine running in neutral or park.
  7. Please leave your pets at home.
  8. No smoking or cell phones are allowed in the testing lanes.
  9. 1996 and newer vehicles with On-Board Diagnostics must be at "Ready" status.


Renewing your Registration

You can renew registration and receive your DMV tags at the DEQ inspection stations. 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, money order or credit/debit (VISA, MasterCard or Discover) ONLY. Checks, travelers checks, food stamps or any other type of payment is NOT accepted.
  • 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 until your next registration cycle.


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For questions or feedback on the Vehicle Inspection Program, visit our Question and Comment page, or call one of our area contact numbers below:
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 503-229-5696

For reporting pollution problems contact Complaints

For technical assistance contact DEQINFO

Oregon Department of Environmental Quality
Headquarters: 700 NE Multnomah Street, Suite 600, Portland, OR 97232
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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