The
Advanced Clean Trucks Rule was adopted in Oregon to reduce tailpipe and greenhouse gas emissions through advanced clean technology. The rule requires manufacturers of medium- and heavy-duty vehicles (Class 2b – 8) to sell zero-emission trucks as an increasing percentage of its overall sales from vehicle model year 2025 through 2035.
Manufacturer Vehicle Sales and Credits
Under the Advanced Clean Trucks Rule, manufacturers may earn, bank and trade ZEV and near zero-emission vehicle credits based on vehicles they produce and deliver for sale in Oregon. While the requirements begin with the 2025 vehicle model year in Oregon, manufacturers could report early ZEV sales starting with the 2022 vehicle model year.
Reported Number of 2022 and 2023 Model Year Vehicle Sales and Eligible Credits in Oregon, updated March 4, 2025
DEQ will evaluate compliance based on the sales information submitted to DEQ. It is important to note the rules provide an additional three years for manufacturers to comply. Manufacturers can carry-over up to 30% of deficit balance each year. This is intended to provide flexibility to manufacturers as they begin to ramp up ZEV sales.
DEQ will not take any enforcement action on deficit compliance until manufacturers have had time to settle their deficits. That will occur in mid-2027, at the earliest. If DEQ does need to pursue an enforcement action, it will evaluate the facts of each case and apply the formula in
Division 12 to calculate a penalty.
Medium- and Heavy-Duty Fleet Report
The Medium- and Heavy-Duty Fleet Report provides information on fleets of five or more medium- and heavy-duty vehicles across the state. This one-time reporting requirement was required under the Advanced Clean Truck Rule. The report will be posted here as it comes available.
Letters to manufacturers
For more information on this topic through email, register to be added to DEQ's
Diesel Biodiesel distribution list.