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

Air Quality

Vehicle Inspection Program

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

Vehicle Inspection Program

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

Portland-Metro area stations are closed Sunday and Monday and open late on Wednesdays. Tuesday is generally the busiest day of the week for Portland-Metro area Vehicle Inspection Stations. Lines are often shorter on Thursdays and Fridays and mid-month.

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 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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