An official website of the State of Oregon
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Medium- and heavy-duty vehicles include large pickup trucks, vans, delivery trucks, box trucks, school and transit buses and long-haul delivery trucks. Diesel emissions from these vehicles produce harmful air quality pollutants, such as particulate matter and nitrogen oxides, which contribute to the formation of smog. Because these diesel emissions are classified as air toxics in Oregon, it is important to reduce exposure to them. They impact public health and are the fastest growing source of greenhouse gases, particularly as the number of truck miles traveled on our roads is forecast to continue to grow significantly in the coming decades.
The Oregon Environmental Quality Commission adopted the Clean Truck Rules on Nov. 17, 2021. It incorporated two critical rules to accelerate the transition to lower emitting medium and heavy-duty vehicles: the Advanced Clean Trucks (ACT) Rule and the Heavy-Duty Engine and Vehicle Omnibus (HD Omnibus) Rule.
FAQ: New Rules for Medium- and Heavy-Duty Vehicles and Engines
Clean Truck Rules Forum, Sept. 29, 2023
Funding is available to replace, retrofit or repower older diesel vehicles and equipment, including charging infrastructure.
House Bill 2007 (2019) established deadlines, after which certain older model diesel engine vehicles cannot be titled or registered in Clackamas, Multnomah and Washington Counties.
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