California Council on Diesel Education and Technology
Guide to ARB’s Diesel Vehicle Regulations
A Guide to ARB’s Heavy Duty Diesel Vehicle Regulations provides basic information and resources to help take the guesswork out of California’s clean truck and bus requirements.
Supplemental Environmental Project Report
The Supplemental Environmental Project Report is a CCDET publication that highlights our objectives, activities, outcomes, and how Supplemental Environmental Project (SEP) funding supports our efforts.
Guide to Maintenance of DPF
Preventive Maintenance Videos
Following a detailed field study, the ARB implemented the Heavy-Duty Vehicle Inspection Program (HDVIP) in 1991. This web page provides details regarding the background and origin of the HDVIP.
SAE J1667 and Diesel Particulate Matter
Diesel Programs and Activities
Diesel Programs and Activities. This page provides links a variety of topics related to diesel including:
Advisories and Regulations
PSIP Enforcement Advisory (351)
The Enforcement of California’s Periodic Smoke Inspection Program (PSIP) advisory 351 contains important updates for owners of California-based fleets and shows the necessity of CCDET course offerings.
Full List of ARB Advisory Notices
This page provides a full listing of ARB Advisory Documents by number, date, and name, along with links to each document.