What does 49 CFR 390.21T (Marking of self-propelled CMVs and intermodal equipment) require?

Short answer

49 CFR 390.21T requires self-propelled CMVs and intermodal equipment to be marked with the motor carrier's legal name or trade name, USDOT number, and other identifying information. The marking must be displayed on both sides of the CMV, be legible from 50 feet, and be maintained in a manner that retains its legibility.

The rule says

"The marking must display the following information: (1) The legal name or a single trade name of the motor carrier operating the self-propelled CMV, as listed on the motor carrier identification report (Form MCS-150) and submitted in accordance with 390.19T." (49 CFR 390.21T(b)(1))

"The marking must (1) Appear on both sides of the self-propelled CMV; (2) Be in letters that contrast sharply in color with the background on which the letters are placed" (49 CFR 390.21T(c))

In plain English

This regulation is about making sure that commercial motor vehicles (CMVs) and intermodal equipment are properly marked with the operator's information. The marking requirements are specific, including the need for the information to be displayed on both sides of the vehicle, be legible from a distance, and be maintained in good condition.

What to do

• Ensure that all self-propelled CMVs and intermodal equipment are marked with the required information, including the motor carrier's legal name or trade name and USDOT number.
• Verify that the marking is displayed on both sides of the CMV and is legible from 50 feet.
• Maintain the marking in a manner that retains its legibility, such as by repainting or replacing the marking as needed.
• Review and update the marking as necessary to ensure compliance with the regulation.