Your USDOT number must be visible from at least 50 feet away. We recommend displaying it at 2 inches in height or larger. Also, the lettering must contrast with the color of your commercial vehicle. If you have a white truck, we recommend a dark color such as black or navy. You must also display your lettering on both sides of your truck to make it easier for authorities to identify you.
If you have any questions, our team would be more than happy to assist.