Your GVW Decal should measure at least 2 inches in height and be visible from a distance of 50 feet away. You should ensure that your decal is in an easy to read font, to avoid any confusion and it should always be displayed on both sides of your vehicle. Lastly, your decal needs to be in a contrasting color to your vehicle color. If your vehicle door is white, you have several dark options such as black, dark blue or brown. If your vehicle door is dark blue, you might go with white, yellow or even copper. We would not recommend placing a matte black decal on a black vehicle, as it would not be FMCSA compliant. Please keep these important requirements in mind before placing your order for your DOT compliant, truck door decals.