Is your vehicle required to pass the emissions test?

If your vehicle is registered with Driver and Motor Vehicles (DMV) within or near the Medford or Portland-Metro areas you may need to obtain a Certificate of Compliance demonstrating your vehicle passes DEQ’s emissions test. Your renewal/registration form mailed to you from DMV should indicate if testing is required.

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

• VIP Boundary-Address Matching

Vehicles that must be tested

In the Portland area:

• All 1975 and newer cars, trucks, vans, motor homes and buses powered by gasoline, alternative fuels (such as propane) or hybrids registered within the DEQ Portland area 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 DEQ Portland area boundaries.

In the Medford area:

• All cars, trucks, vans, motor homes and buses powered by gasoline, alternative fuels (such as propane) or hybrids 20 years old or less and registered within the DEQ Medford area boundaries
• All diesel powered vehicles 20 years old or less 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 DEQ Medford area boundaries. This includes all passenger cars and most light-duty trucks.

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 8:00 am - 5:00 pm) or e-mail VIP Info.

Vehicles new to Oregon

If your vehicle is new to Oregon and registering in Oregon for the first time you can receive a Vehicle Identification Number (VIN) inspection at any DEQ Clean Air Testing Station. However, your license plates issued by your previous state of residence must remain on the vehicle. Visit DEQ, take the emissions test, receive a VIN inspection and return to DMV to complete your registration. You will only be able to pay for the Certificate of Compliance at DEQ. All other registration fees including the VIN inspection ($7.00) will be collected by DMV.

Vehicles that are exempt from testing

If your vehicle is listed below it is exempt and you may need to fill out a Declaration of Exemption form and return it to DMV with your registration renewal. Contact DEQ at (971) 673-1630 or toll free in Oregon at (877) 476-0583 to obtain the form.

• Heavy duty diesel-powered vehicles (gross vehicle weight rating 8,501 or more)
• Vehicles legally registered outside DEQ program boundaries
• Motorcycles and low-speed vehicles (mopeds, golf carts, tractors, all-terrain vehicles, etc.)

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