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Clean Truck Check - What to Do When an ECL is Missing/Illegible

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HEAVY-DUTY VEHICLES

EMISSION CONTROL LABEL REQUIREMENTS

Existing California law (1) requires vehicles that operate in California, regardless of entry point, to run with engines that meet emissions standards at least as stringent as U.S. federal standards for the model year that the engine was manufactured.

All heavy-duty vehicles need to have proof that the engine meets appropriate emissions standards by having the manufacturer emission control label (ECL) properly affixed on the engine and fully legible.  

What to do if vehicle ECL is missing or illegible?

If your ECL is missing or illegible you should contact your local dealer or engine manufacturer to obtain the engine family information and to order a replacement label. The replacement ECL must be maintained at the location originally placed by the engine manufacturer and correspond to the engine serial number stamped on the engine.

If a replacement ECL is currently unavailable, please have the engine manufacturer fill out the vehicle’s engine information below:

VEHICLE ENGINE INFORMATION

Engine Manufacturer: 

Date: 

Engine Family Name:

Engine Serial Number: 

Engine Model: 

Displacement: 

Engine model year: 

Horsepower: 

Engine Manufacturer Contact Information:

Comments:

Note:  Heavy-duty vehicles manufactured before 1974 or were originally not equipped with an ECL but have evidence that the vehicle meets Environmental Protection Agency (EPA) and CA emissions standards may note “Not Applicable” in the form submission section for “Engine Family Name”. 

Keep this document in the cab of your vehicle, in place known by the driver until the replacement ECL is obtained.

Manufacturer contact information

If you have questions please email hdim@arb.ca.gov

Additionally if you've contacted the manufacturer and there will be a long period of time until your ECL is delivered, please ask for the manufacturer to generate the letter containing the ECL information as well. If they will not and the timeframe is still a long period of time, please email HDIM@arb.ca.gov

References

  1. Heavy-Duty Diesel Emission Control Label (ECL) Inspection Program Regulation 

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