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

Short answer

49 CFR 390.21 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 away, 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 Form MCSA-1, the URS online application, or the motor carrier identification report (Form MCS-150) and submitted in accordance with 390.201 or 390.19, as appropriate." (49 CFR 390.21(b))

"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; (3) Be readily legible, during daylight hours, from a distance of 50 feet (15.24 meters) while the CMV is stationary; and (4) Be kept and maintained in a manner that retains the legibility required by paragraph (c)(3) of this section." (49 CFR 390.21(c))

In plain English

The marking requirements ensure that the motor carrier's information is clearly visible and easily readable, which helps with safety inspections, audits, and enforcement actions. Motor carriers must ensure that their CMVs and intermodal equipment are properly marked to avoid violations and fines. In practice, this means that motor carriers need to have a system in place to maintain the markings on their vehicles and equipment, including regular inspections and updates as needed.

What to do

• Verify 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.
• Ensure that the markings are displayed on both sides of the CMV and are legible from 50 feet away.
• Develop a maintenance schedule to keep the markings in good condition and retain their legibility.
• Train personnel on the importance of proper marking and maintenance to avoid violations and ensure compliance with 49 CFR 390.21.