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Vehicle Labeling

When will I receive my Equipment Identification Numbers (EINs)?

Fleets that have reported online through DOORS will receive their EINs immediately upon approval of their fleet. EINs are viewable by logging into your DOORS account and selecting “View EINs” from the drop-down menu. Fleets that have reported via hardcopy forms will have their EINs mailed directly to them.

Once I receive the ARB issued EINs, what are the requirements for labeling vehicles?

Labeling requirements have changed slightly. Once you have received your numbers you must label your equipment within thirty (30) days. You can purchase stickers or paint the numbers directly onto the vehicle. The background must be red with white lettering that is 3” tall and 1½“wide. Place the EINs on the outside of the vehicle, approximately 5 feet above ground level. If the vehicle is not 5 feet tall, the EIN can be placed lower on the vehicle. Furthermore, the EIN must be maintained in a manner that retains its legibility for the entire life of the vehicle.


  • Beginning January 1, 2013, you must have equipment identification numbers on both sides of the vehicle.
  • Captive area attainment fleets EINs must be changed to white letters on a green background.

Where can I buy labels?

BeCarbCompliant.com offers a full range of labeling services call us today to get the latest pricing and availability.

This is a picture of a tracker with a ARB compliance label on it.

On Road Vehicle Labeling Requirements


The Engine Emission Control Label (ECL) is a label that the Original Equipment Manufacturer (OEM) places on the block of your engine. It contains vital information regarding your engine such as; engine manufacturer, engine model, family, model year, on road or off road, engine use and engine emission certification. The engine serial number is usually found on the engine itself.

Because this data is extremely important, care should be taken to preserve it.

We highly recommend that you avoid using pressure washers or steam cleaners around the placement area. If the label is no longer readable, you must contact the engine manufacturer to request a replacement (cost is around $100.00).
It’s also suggested you take a picture of the label and keep it in your files.

The Engine Emission Control Label (ECL)

If you are stopped at a roadside inspection and don’t have a readable label the California Air Resource Board can give you an $800.00 citation!

Qualifying low-mileage construction trucks must be labeled within 30 days of reporting. Fleet owners must permanently affix or paint the letters “CT” in white block lettering 3” high on a five by eight inch black background on both truck doors. The labels should be in clear view at all times. ARB will not issue the label, however, BeCarbCompliant has stickers available for purchase.

An example of the placement of CT on qualifying construction trucks.

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