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Registration renewal and diesel vehicle exemption questions can be addressed by the Oregon Driver and Motor Vehicle Services (DMV) or Oregon Commerce and Compliance Division (CCD) based on the gross vehicle weight rating and linked below. The gross vehicle weight rating means the value specified by the manufacturer as the maximum design loaded weight of a vehicle.
The Environmental Protection Agency, and California's Air Resource Board, maintain lists of currently verified retrofit technologies for on-road diesel engines, proven to achieve at least an 85% reduction in diesel particulate matter. Currently verified EPA or CARB retrofit technologies, otherwise known as diesel particulate filter or DPF systems, may qualify as Approved Retrofit Technology for Oregon's Retrofit Compliance Program. To meet the criteria for Approved Retrofit Technology, DEQ will need to verify that the technology meets the following:
Please follow the links provided to find the diesel retrofit compliance rules:
HB 2007 (2019) authorized DEQ's Diesel Emissions Mitigation Grant Program to provide grant funding, subject to availability, to support the purchase of retrofit systems, as well as cleaner burning engines and diesel equipment replacements. Vehicle owners who apply and are awarded the grant funding, will be eligible for up to 100% of the retrofit technology cost. DEQ intends to have approximately $8 million available each year beginning in 2021 with a target of providing at least five years of funding based on available revenue. Please refer to our Diesel Emissions Mitigation Grants web page for key dates and more detailed information.
In preparation of submitting the online application, there are several steps vehicle owners will need to complete. Below is a checklist and summary of the application process.
After completion of the vehicle retrofit installation, Oregon DEQ requires the following documents to be ready prior to submitting the application. The Signature of Attestation will need to be completed and signed by the registered owner or authorized representative. The installer will also need to sign the Installer Certification Section. The other documents listed below should be provided by the installer.
Please ensure the following requirements have been prepared by the authorized installer:
Please contact the Retrofit Compliance Program for information about the Approved Retrofit Technology application by email:
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