There's more to vehicle marking than you may think
Vehicle marking is addressed in two sections of the Federal Motor Carrier Safety Regulations (FMCSRs).
All interstate carriers operating in the United States are required to have a USDOT number per §390.19T. Any commercial motor vehicle (CMV), however, needs to be marked as required by §390.21T. In addition, many states require their intrastate carriers to have a USDOT number and incorporate the number into vehicle markings as well.
Some believe that the USDOT number and marking rules only apply to trucking companies, but this is not the case. Like most of the FMCSRs, the rules apply to any CMV as defined by §390.5T, which includes any vehicle that is involved in interstate commerce on a highway and:
- Weighs 10,001 pounds or more based on the gross vehicle weight rating, gross combination weight rating, gross vehicle weight, or gross combination, whichever is greater;
- Is designed to transport 9 or more people (including the driver) for compensation, or 16 or more people (including the driver) regardless of compensation; or
- Is transporting hazardous materials in quantities requiring the vehicle to be placarded.
This means the rules even apply to a pickup truck with a trailer when one of the thresholds above is met.
Most of the marking requirements in §390.21T are straightforward. Self-propelled CMVs must be marked on both sides of the vehicle with the carrier’s name as it appears on the MCS-150 and with the letters “USDOT” followed by the carrier’s USDOT number.
Note: Since trailers and semi-trailers are not self-propelled, they do not need to be marked.
The regulations do not dictate the size or color of the markings. The lettering needs to be readily legible, during daylight hours, from 50 feet away while the CMV is stationary. While this is left to enforcement, the letters should be no smaller than two inches in height. As far as color, the lettering must contrast sharply with the background on which the letters are placed.
If the vehicle is only sometimes a CMV (such as a pickup truck when hauling a trailer), it needs to be marked only when it qualifies as a CMV. This can be accomplished by using vinyl or magnetic signage so that when the vehicle is a CMV, the vehicle is marked as required.
If more than one name appears on the vehicle, then the trade name used must be followed by the words “operated by,” which in turn is followed by the operating company’s legal name, followed by “USDOT” and the carrier’s number. However, if the brand name, or “trade name,” is registered with the FMCSA on the MCS-150, then the trade name can be displayed by itself with the USDOT number.
Key to remember: The USDOT number and marking rules apply to any CMV as defined by §390.5T, not only trucking companies.