If your residential or business address is in
Clackamas,
Multnomah, or
Washington county, you cannot get a title or registration for certain older diesel-powered trucks
unless they are equipped with approved retrofit technology and certified by DEQ. The two truck categories are:
- Medium-duty (gross vehicle weight rating is 14,001-26,000 pounds)
- Heavy-duty (gross vehicle weight rating is 26,001+ pounds)
Timeline
Since January 1, 2023, DMV does not issue or renew registration for:
- Medium-duty trucks powered by a model year 1996 or older diesel engine.
Starting January 1, 2025, DMV will not issue a title for:
- Medium-duty trucks powered by a model year 2009 or older diesel engine.
- Heavy-duty trucks powered by a model year 2006 or older diesel engine.
Starting January 1, 2029, DMV will not issue or renew registration for:
- Medium-duty trucks powered by a model year 2009 or older diesel engine.
Exemptions
If your diesel-powered truck is exempt from diesel retrofit requirements, you must provide an exemption certification (
Form 1403) when you apply for title
and at every renewal.
These medium-duty vehicles are exempt from diesel retrofit requirements:
- Antique vehicles (Definition: A vehicle older than one-half the number of years between the current year and 1900 that is maintained as a collector’s item. Antique vehicles can meet this definition even if they are not registered with “AQ” antique plates.)
- Motor homes
- Farm-plated vehicles and farm tractors
- Vehicles used exclusively for training
- Emergency vehicles
- Ambulances
- Vehicles used to transport logs, as defined in ORS 801.355
These exemptions are only for heavy-duty trucks:
- Heavy-duty trucks operated for 5,000 miles or fewer on Oregon highways in one calendar year.
- Carriers with a fleet size of five or fewer heavy-duty trucks.
Need more information?
For Diesel Retrofit Compliance Program requirements:
For title questions and medium-duty truck registration questions:
- Call DMV Customer Assistance at 503-945-5000.
For commercial vehicle registration questions: