Diagram of a truck with USDOT regulation decal lettering tips labeled on it.

USDOT Truck Decals

Custom USDOT truck door decals for owner-operators and commercial fleets. FMCSA-compliant sizing, high-visibility vinyl, and durable materials designed for semi-trucks and box trucks.

Order custom USDOT number decals or matching fleet numbers — made for easy installation and everyday road use.

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The Ultimate Guide to FMCSA & USDOT Compliance Decals

Navigating Federal Motor Carrier Safety Administration (FMCSA) regulations is vital for every owner-operator and fleet manager. If your commercial vehicle has a Gross Vehicle Weight Rating (GVWR) of over 10,001 lbs, or transports hazardous materials, displaying a valid US DOT number is not optional—it is a federal requirement. Failure to display these numbers correctly can result in hefty fines, failed inspections, and vehicles being placed "out of service."

Our custom USDOT truck decals are engineered to meet every specific requirement of the law. We take the guesswork out of compliance by ensuring your Company Name, VIN, KYU, MC, and GVW numbers are perfectly sized, spaced, and legible. Don’t risk your livelihood on cheap stickers; equip your rig with professional-grade lettering that satisfies inspectors and represents your business with pride.

  • FMCSA Size & Visibility Rules

    Compliance is in the details. Per FMCSA regulation 390.21, your USDOT number must be visible from 50 feet away during daylight hours. This requires lettering that is at least 2 inches in height with a sharp contrasting color against your truck’s paint. Our decals use high-contrast fonts specifically chosen to meet these strict legibility standards, ensuring you pass weigh station inspections breezily.

  • Premium All-Weather Durability

    Commercial trucks face harsh realities: road salts, UV rays, pressure washers, and extreme temperatures. We use only premium, automotive-grade vinyl designed to withstand highway abuse for years without fading, cracking, or peeling. Unlike standard stickers, our "Air-Release" vinyl technology allows for bubble-free application, giving you a painted-on look that protects your professional image mile after mile.

  • What Numbers Do You Need?

    Every fleet is different. While the USDOT Number is the universal identifier, many operations require additional lines.

    • MC Number: Required for interstate commerce (crossing state lines).
    • GVWR: Often required to determine weight class.
    • VIN (Last 8): Frequently required for leasing operations.
    • KYU/CA Numbers: Essential for specific state regulations (Kentucky/California).
      We allow you to customize your set to include exactly what your specific operation requires.
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Frequently Asked Questions

Will this pass DOT / FMCSA inspection?


Yes. The USDOT number is produced at or above the FMCSA minimum letter height selected on this product. Layout and contrast follow standard DOT door identification practices.

⚠️ Final compliance depends on correct placement and a clean mounting surface.

Is this one decal or a pair?


This listing includes a set of 2 decals — one for the driver door and one for the passenger door.

What material are these made from?


We use Oracal® 651 professional-grade vinyl, the same material used by commercial sign shops. It’s rated 5–7 years outdoors and designed for vehicle use.

Will the decals hold up to weather, highway speeds, and washes?


Yes. The vinyl is UV-resistant, waterproof, and weather-safe, and holds up to sun, rain, and normal highway use.

We recommend waiting 72 hours after installation before washing.

Are these easy to install?


Yes. Each decal comes pre-spaced with transfer tape for a DIY install.

Clean the surface, apply pressure evenly, and peel the transfer tape slowly.

How is sizing handled with multiple lines?


Sizing is based on the USDOT letter height you select.

All other lines are scaled proportionally for balance and legibility, and total width is optimized to fit standard truck doors.

Can I choose fonts and colors?


Yes. You can select from DOT-appropriate fonts and high-contrast colors to ensure readability.

Can I see a proof before you cut it?


Yes. Select “Request Proof” at checkout if you’d like to review the layout before production.

What if I make a mistake entering my information?


Please double-check all spelling and numbers before checkout.

We cut exactly what is submitted. Returns are not accepted for custom items.

Will this fit my truck?


These decals are designed for standard semi-truck and box-truck doors, including Freightliner, Kenworth, Peterbilt, International, Isuzu, and similar vehicles.


Can't find the answer you're looking for? Visit our main FAQ page for more information on shipping, returns, and our materials.

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