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For videos on zero-emission vehicles, topics, and programs such as the Advanced Clean Fleets (ACF) or Advanced Clean Trucks (ACT) regulations, please visit the ZEV TruckStop helpful videos page
Clean Truck Check (HD I/M) Tester Training Modules
Module I: Purpose and Expectations (4 minutes)
Module II: Basic Regulatory Requirements (38 minutes)
Module III: On-Board Diagnostics (OBD) and OBD Compliance Testing (30 minutes)
Module IV: SAE J1667 Smoke Opacity Testing (19 minutes)
Module V: Vehicle Emissions Control Equipment Inspection (Visual Inspection) (18 minutes)
Module VI: How to Access the HD I/M Tester Exam (3 minutes)
DMV Compliance Verification
CARB Non-Compliant Vehicle - 2020 DMV Registration Renewal Notice
Truck & Bus Flexibility Options
Truck & Bus Regulation Low Use Exemption
Truck & Bus Regulation NOx Exempt Flexibility Option
TRUCRS Online Reporting Help
Recover TRUCRS Username/Password (4 min)
Compliance Summary and Printing Certificate (6 min)
Compliance Options and Reporting Requirements MS 521.9 (1 hr 28 Min)
Reporting Odometer Readings (4 min)
School Bus Information
Public School Bus Overview Webinar
Diesel Engine Information
How to locate the Gross Vehicle Weight Rating (GVWR) (1 min)
How to locate the Engine Control Label (ECL) (1 min)
A Truck Driver’s Guide to Care and Maintenance of Diesel Particulate Filters (12 min)
Diesel Vehicle Retrofits - What Diesel Fleet Administrators Need to Know
Program Introduction (15 min)
How to Select the Proper Retrofits (15 min)
Retrofit Installation Requirements (13 min)
Essential Engine and Retrofit Maintenance Practices (14 min)
Retrofit Program Enforcement and Compliance (9 min)
See the retrofit website for more information.
Tractor-Trailer Greenhouse Gas (GHG) Regulation Information
Online Compliance Training (Regulation Overview) (34 min)
TTGHG - How To Report (19 min)
Clean Air Vehicle Technology
Diesel Forum: Moving Forward with Clean Diesel Technology (3 min)
A Smart Way to Reduce Greenhouse Gases (3 min)
Diesel Truck Upgrade Testimonials
Mueller Transport Benefits from Carl Moyer (3 min)
Veritable Vegetable Drives for Cleaner Air (3 min)
Barajas Trucking and Clean Diesel 9 (1 min)
Diesel Regulation Training Course Recordings
Trucks and Buses
MS521.9:CARB Diesel Truck Rules - Compliance Options and Reporting Requirements for 2023 and Beyond
MS511.2: Diesel Particulate Filter (DPF) Operation & Maintenance
School Buses & Public Agencies
MS522: Air Regulatory Overview for Public Agencies in California
MS523: Air Regulatory Overview for Public Schools in California
MS523B: Truck Regulation Upload Compliance and Reporting System (TRUCRS) for School Bus Fleets
CARB Compliance Overview