US DOT Numbers Requirements For Commercial Trucks


What are the rules exactly? Let's say you are leasing a semi, delivery van or courier vehicle for your logistics business. Since the truck is not something you personally own (or will ever own for that matter), you would like to limit the amount of alterations you make to the vehicle to insure a smooth transition when the terms of the lease expire. You also have to identify your vehicle with the proper GVW, MC, ICC or US DOT Numbers in order to be compliant with the DOT. According to the US DOT publication ETA 501c section 390.21 referencing vehicle identification the rule is this:

"Every commercial motor vehicle operated by a motor carrier in interstate commerce must be marked,

on BOTH sides of vehicle, with the following:
The motor carrier’s name or trade name The motor carrier’s identification
number, preceded by “US DOT”
The size, shape and color markings must be in letters that contrast sharply in color with the background on which the letters are placed
The lettering must be readily legible during daylight hours, from a distance of 50 feet."
* While it is true that the law does not specifically state a size or color requirement, it does say that it needs to be "legible" from 50 feet. The sign industry standard for block lettering to be read at 50 feet is 2" high. Other fonts and colors are perfectly legal, they just need to be sized a little larger to be read from a 50 foot distance.

So what are the requirements to who needs to display US DOT Numbers?
A motor carrier displays two things on both sides of
each power unit: (1) the carrier’s legal name or a single
trade name of the business that owns or controls
operations, and (2) the carrier’s U.S. DOT number.
Exceptions: The requirements don’t apply to vehicles 26,000 lbs. or less
(gross combination weight rating) if used only in intrastate private
except vehicles hauling hazardous materials of a type or
quantity requiring placarding, or passenger vehicles with a seating
capacity of 15 or more including the driver. Carriers conducting for-hire
operations with passenger vehicles with a seating capacity of 9 to 15,
including driver, are only required to display the U.S. DOT number.

Tags: kalamazoo semi truck lettering, Kalamazoo Signs, semi truck, semi truck graphics, semi truck lettering, US DOT Numbers