If you’re a super trucker (on the road trucker) you are most likely going to need more than just a USDOT number. At USDOTDecals.com, we always recommend displaying all of the regulation numbers you might need now and in the future. This will make your time a lot easier whenever you go through truck scales (weight stations), get stopped by DOT, or when you get stopped by local authorities. If you are driving across the country, you will need a KYU number if you plan to drive through Kentucky. Also, if you plan to deliver any load into California, you must have a CA number displayed on your commercial vehicle. Below are a few examples of US DOT complaint custom truck decals. They are 2.5” inch lettering and a block easy to read font is used. These decals will be going on a white commercial truck, so the lettering will definitely stand out. You can either display your important numbers vertically or you can double row them. All of our products are 100% DOT compliant with a 10-year guarantee. If you have any questions, please do not hesitate to contact us, our customer service representatives will be more than happy to answer any questions you might have.