How Big Should Your USDOT Number Decal Sticker (USDOT Vinyl Lettering) Be?
Your US DOT Number should be at least 2 inches in height and MUST be visible from at least 50 feet away. It also must contrast with the color of your commercial vehicle. While 2 inches in height is the bare minimum, we recommend your US DOT lettering to be at least 3 inches, just to be safe. You can literally display your USDOT number as big as you desire.
- Andres Espinoza