USDOT vinyl decals are a long term solution to display your US DOT number, while keeping you legal on the road. The dot decals are pre-spaced and ready to apply, for easy installation on any smooth surface. Our US DOT stickers are a great alternative to magnetic signs for your USDOT compliant vehicle numbers. All of our truck number decal options will meet the 50ft visibility requirement of the Department of Transportation. The Department of Transportation requires companies that operate commercial vehicles to transport cargo or people interstate to register with FMCSA and display their unique USDOT number on the vehicle. Upon registering with the Department of Transportation, they will issue your number in which you will need to display on your vehicle, that's where we come in!