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

Air Quality

Vehicle Inspection Program

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

Vehicle Inspection Program

Reducing smog, air toxics and greenhouse gases in the Portland and Rogue Valley areas

Labor Day Closures

All Oregon Department of Environmental Quality offices, including vehicle emission test stations, are closed for the 3-day holiday weekend; Saturday, Sept. 3 through Monday, Sept. 5 in observance of Labor Day.

The Scappoose station will be open Thursday, Sept. 1 and Friday, Sept. 2.

All offices and stations will resume their normal operation hours after Labor Day.


Traffic Alert

Clackamas Clean Air Station: Visitors to this VIP station will experience delays through 2016 due to major highway construction nearby.

  • Road closures and detours affect access to 82nd Drive.
  • Watch for signage and expect delays. Area construction will continue throughout 2016. Check for additional information and updates at ODOT website.


Portland Area


Medford Area

In the News

Volkswagen emission test fraud.


DEQ operates a Vehicle Inspection Program in the Portland and Rogue Valley areas of Oregon. In these areas, an emissions test is required when registering or renewing a vehicle with Oregon DMV. Vehicles are the number one source of air pollution in Oregon. Emissions can lead to high smog levels and contain air toxics, carbon monoxide and greenhouse gasses, which can have a variety of effects on Oregonians. The Vehicle Inspection Program is a successful, cost-effective way to reduce air pollution and maintain good air quality.

Contact Us

Do you have a question or a comment about the VIP program? Contact us by using our online form.

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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

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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