If you’re new to being an owner-operator, USDOT compliance can feel like one more thing on a long list. The good news is most issues are avoidable once you know what to watch for.
Here are the most common USDOT number rules and mistakes we see trip people up, plus the simple fixes that keep you compliant and looking professional.
1) Your DOT number isn’t readable from a distance
This is the biggest problem we see. If your DOT info is hard to read quickly, it can become an issue during a stop or inspection.
- Faded or scratched lettering
- Poor contrast (dark text on dark paint, light on light)
- Dirty, salt-covered, or worn graphics
- Magnets that have shifted, curled, or lost hold
Fix: Choose a durable option and replace graphics when they start looking rough. If you want an easy, clean install, our USDOT sticker combos are designed to apply fast and look professional.
2) Incorrect placement (or only installing one side)
We still see this a lot. Many folks install on one side only, or place the information where it gets blocked by equipment, toolboxes, ladders, or grime.
Fix: Install your USDOT info on both sides of the power unit where it’s clearly visible and not obstructed.
If you want a simple install walkthrough (plus common fixes for bubbles or crooked placement), start here: How to Properly Install USDOT Decals (and Fix Common Issues).
3) Your business name doesn’t match your registration
Your DOT display should match what’s on file with FMCSA (legal name or DBA). Even small mismatches can create headaches.
- Using an old business name
- Using a nickname instead of the registered name
- Leaving off parts of the name you use consistently (like “LLC”)
Fix: Double-check your registration details before ordering graphics. If you’re unsure, we’ll help you get it right the first time: Contact DOT Number Store.
4) Magnetic signs can be compliant, but they need regular care
Magnetic signs are a great option when you want flexibility. But they do require routine care to stay flat, clean, and secure.
- Remove and reapply regularly
- Keep both the magnet and vehicle surface clean and dry
- Store magnets flat when not in use
Fix: If removable signs make sense for your setup, browse our USDOT-compliant magnets.
5) Choosing the wrong decal type for your situation
Not all setups are the same. The “best” option depends on how you use your vehicle and how permanent you want the graphics to be.
Here’s a simple guide that breaks it down: How to Choose Between Vinyl, Magnetic, and Reflective DOT Decals.
If you want a single easy-apply piece (instead of lining up letters), take a look at: Easy Slap peel & stick decals.
6) Waiting too long to install your graphics
We get it. You’re juggling equipment, insurance, dispatch, maintenance, and about a hundred other things.
But this is one you don’t want to push off. Getting your USDOT graphics handled early is an easy win. It’s one less thing to worry about when you’re on the road.
Quick checklist before you hit the road
- ✅ DOT info is on both sides
- ✅ High contrast and easy to read
- ✅ Not blocked by equipment or grime
- ✅ Matches your registered business name/DBA
- ✅ Installed cleanly and securely
Shop compliant USDOT graphics
Whether you need a permanent decal or a removable magnet, we make it simple to get compliant and look professional.
Shop USDOT Stickers Shop USDOT Magnets
If you have questions, start here: Frequently Asked Questions or contact us.