Online applications for medium- and heavy-duty vehicle retrofit certifications are now available; avoid registration renewal stoppage beginning in 2023
Nov. 30, 2022 The online application system for certification in the Diesel Retrofit Compliance Program is now open. To prepare for this process, there are several steps vehicle owners must complete. DEQ’s Retrofit Compliance Program web page has step-by-step instructions, including information on required documents, and a link to the online application. Avoid any delays in renewing vehicle registrations by beginning the…