California Council on Diesel Education and Technology

Class Schedule

Notice Regarding the 2023 CCDET Schedule:


As of January 1 of 2023, CARB’s Heavy Duty Inspection and Maintence Regulation took effect. While the regulation will be phased in over the course of 2023, the requirements for Tester certification began on January 1, 2023. All testers who perform emmissions testing pursuant to the new regulation must pass  CARB’s online HD I/M course and test, available for free on the CARB website. Because of this, the current version of CCDET I: PSIP / HDVIP class has been discontinued. But for those who prefer live instruction with a hands-on lab, CCDET is working on an option for you!

CCDET is in the process of revising our CCDET I course to include the new HD I/M information. Once the course is complete, we will submit it to CARB for official approval as alternate curriculum. We estimate that this process will be complete sometime in March of 2023. The revised CCDET I: HD I/M course will have the added benefit of including hands-on instruction on operating both OBD devices and smoke meters. Because CCDET courses use live instructors and include hands-on labs, there is a registration fee, so CCDET I: HD I/M will not be free.

Upon completion of our course, participants will take CARB’s online certification test, and receive their HD I/M tester number directly from CARB once they pass.


The CCDET II course has been discontinued.

CCDET III: Smoke Testing Cargo Handling Equipment

CCDET III will be available in 2023, but it will be on a reduced schedule. The course will be offered approximately once per quarter as demand dictates. It will also likely be included in a combination class where participants recieve multiple CCDET certifications in one day.

CCDET IV: Commercial Harbor Craft

We are currently working with CARB to develop a course on smoke testing Commercial Harbor Craft. This course is being created pursuant to CARB 2023 Amended CHC Regulation Order, California Code of Regulations, Title 17, Section 93118.5. We will provide additional information as the implementation date approaches.

Course Descriptions:

Instructions: The California Council on Diesel Education and Technology provides one-day training courses through selected Community Colleges. Find a college and class date that fit your schedule, and then click the Register Button. Registration procedures differ slightly by college. Follow the instructions on the form or page that displays after clicking Register.

Course Descriptions

CCDET I: HD I/M  & SAE J1667 - Smoke Testing (On-road Vehicles) - Under Development

  • CCDET I: HDVIP / PSIP & SAE J1667 - Smoke Testing - Discontinued

You need CCDET I if you perform:

  • Periodic smoke inspections
  • SAE J1667 Snap Idle Test

A one-day course for smoke-testers, and fleet managers or owners covering basic smoke emissions troubleshooting and repair, current emissions regulations, hands-on training on the correct administration of the SAE J1667 Snap Acceleration Smoke Test Procedures for Heavy-Duty Diesel-Powered Vehicles, and the importance of service and maintenance.

CCDET III: Smoke-testing Cargo Handling Equipment

You need CCDET III if you perform:

  • Periodic smoke inspections on Cargo Handling Equipment at ports or intermodal rail yards

This 4-hour course covers implementing opacity testing for Cargo Handling Equipment (CHE). It includes smoke test regulations, requirements, and standards as they apply to CHE, SAE J1667 Snap-Acceleration Test procedures with specific variations for CHE. The course includes both classroom and hands-on components.

You need this course if:

  • You want to be certified in both on-road vehicles & Cargo Handling Equipment
  • You'd like to pay a discounted rate of $250 ($50 savings: CCDET I $175 + CCDET III $125 = $300)

Some CCET Colleges offer the CCDET I & III courses on the same day. Participants pay a discounted price over the individual pricing, and will be able to test and receive certification for smoke-testing both on-road vehicles and cargo handling equipment. This is ideal for smoke-testers for-hire who might be called upon to work on a variety of equipment for clients.

The class includes hands-on instruction in performing the SAE J1667 Snap Acceleration Smoke Test Procedure and instruction on the applicable on-road vehicle and cargo handing equipment regulations.

Diesel Exhaust After-treatment & Maintenance (D.E.A.M)


You need this class if you work on:

  • Diesel Particulate Filters (DPF) or
  • Selective Catalytic Reduction (SCR)

CCDET II is a one-day course that discusses current diesel exhaust after-treatment technology including diesel particulate filters (DPF) and selective catalytic reduction (SCR) systems as well as hands-on shop exercises designed to reinforce service and preventative maintenance procedures.

2023 Class Dates by Region

Northern California

American River College  |  Mather Center, 10150 Missile Way, Mather, CA 95655

Most CCDET classes at American River College, in the latter half of 2022will be held in-person.  But please note that a few will be offered  online via Zoom; so please select a class that best meets your schedule and needs. The in-person or online status of the class is indicated next to the class date.


7:30am – 4:30pm

  • TBD. See notice at the top of the page.


7:30am – 4:30pm

  • TBD. See notice at the top of the page.

San Franciso Bay Area

College of Alameda  |  Diesel Technology Bldg., 555 Ralph Appezzato Memorial Parkway, Alemeda, CA 94501 


Course Dates

  • TBD. See notice at the top of the page.


Course Dates

  • TBD. See notice at the top of the page.
Central California
Central California

Please note that all CCDET classes at Delta College in 2022 are in-person unless otherwise indicated.


Friday: 7:30 am – 4:30 pm

  • TBD. See notice at the top of the page.


  • TBD. See notice at the top of the page.



Southern California

Los Angeles Trade-Tech College  |  400 West Washington Blvd., Los Angeles, CA 90015 

CCDET I + III Same Day
(On-road vehicles + CHE)
8:00 am – 4:30 pm

Course Dates

  • TBD. See notice at the top of the page.

(On-road vehicles)
8:00 am – 4:30 pm

Course Dates

  • TBD. See notice at the top of the page.

Smoke-testing CHE
8:00 am – 12:00 pm

Course Dates

  • March 2, 2023 – Thursday

Palomar College  |  1140 West Mission Road, San Marcos, CA 92069 

Please note that during the COVID-19 crisis, all CCDET classes are held remotely online unless otherwise indicated.


8:00 am to 5:00 pm

  • TBD. See notice at the top of the page.


12:00 pm to 4:00 PM

  • TBD. See notice at the top of the page.

Santa Ana College  |  1530 W. 17th Street, Santa Ana, CA 92706

Santa Ana College offers some in-person CCDET classes and some live online classes via Zoom. Be sure to note which type of instructon you are selecting.

Important!: Live Online  Classes have special technology requirements. Please only register for a live online class if you:

  • Have access to a smoke meter at your location to perform the hands-on lab
  • Meet the other technology requirements outlined in this linked document.



  • TBD. See notice at the top of the page.

Click the button below, and then use keyword “CCDET” to filter the class list.

CCDET enrollment or content questions: See contact for college near you.
Website Admin: (Ken Bolding)

This page last reviewed Feb 21, 2023 @ 2:50 pm.