The DOTNumberStore.com is your one-stop shop for US Department of Transportation (USDOT) compliance stickers and magnetic signs for identification of tractor trailers, semis and other commercial vehicles used throughout transportation industry. Our mission is to provide individuals working within the trucking industry an affordable source for US DOT identification number decals for transportation vehicles. We offer two different types of vehicle signage to choose from (permanent or removable) . Through this website you can enter your assigned US DOT number and purchase your die-cut vinyl lettering, or if you are looking for a less permanent option, magnetic signs. All orders come with FREE Ground SHIPPING!  Click here to Shop Now or scroll down to view our best sellers.

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USDOT Number Information

If you or your company operates a vehicle for commercial purposes, that transports passengers or hauls cargo from state to state for commerce, you must register with the Federal Motor Carrier Safety Administration (FMCSA). Upon completing your registration, you will be supplied a registration number and you will need to display the US DOT number on your vehicles. Your unique USDOT number will be your individual identification number for any company safety audits, vehicle inspections, accident reports and compliance reviews. This number will be required to be posted on both sides of your vehicle and must be visible from a minimum of 50 feet away. A general rule of thumb is that lettering that is 2” or taller will meet this visibility requirement for your US compliant DOT numbers. Some states and municipalities do require a larger number than the US Department of Transportation (visit our Regulations page to view the regulations by state). You can install the numbers on the vehicle using adhesive vinyl stickers or magnetic signs so long as the decals or magnets are contrasting, meaning the color of the numbers contrasts from the color behind them to allow for easy visibility. For the US DOT Stickers, the vehicle paint color should contrast with the color of the stickers. For the magnets, you will want to choose a light color for the background, and dark color for the numbers (or vice versa).