Vehicle Inspection

Is your vehicle required to pass the emissions test?

Vehicles registered inside the Portland area testing boundary may need to pass an emissions test.

Your renewal/registration form mailed to you from the DMV may state if your vehicles needs to test.

To determine if your vehicle is registered within a DEQ emissions testing boundary visit our VIP Boundary Lookup tool or contact DEQ’s Vehicle Inspection Program at 503-229-5066.

Vehicle Inspection Program Boundary Lookup

Vehicles required to test

  • All 1975 and newer cars, trucks, vans, motor homes and buses powered by gasoline, alternative fuels (such as propane) or hybrids registered within the Portland testing boundaries.
  • All 1975 and newer diesel powered vehicles with a manufacturer's gross weight rating of 8,500 pounds or less (This includes all passenger cars and most light-duty trucks) registered within the Portland testing boundaries.

Vehicles temporarily located outside of Oregon

If your vehicle is temporarily out of Oregon at the time your DMV registration renewal is due, please call toll-free 1-877-476-0583 (Monday - Friday 8 a.m. - 5 p.m.) or visit our Questions and Comments page.

Vehicles new to Oregon

Vehicles new to Oregon will need a vehicle identification number inspection as well as an emissions test. The DMV will charge $7 at the time of registration. A VIN inspection can be performed for most vehicles along with the emissions test with the exception of the following:

Vehicles that are exempt from testing

The maps above illustrate the general testing area for the greater Portland Metro area. Please use the VIP Boundary Lookup tool for address verification.


For questions or feedback on the Vehicle Inspection Program, visit our Questions and Comments 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