Regulation numbers
USDOT Decal with CO Suffix (Colorado)
USDOT, your number, then CO, such as USDOT 1234567 CO. Type it, preview it, order. $18.99 per decal.
$18.99per decal
Live previewType your lines on the rightbelow and watch the door update.
USDOT Decal with MT Suffix (Montana)
$18.99per decal
USDOT, your number, then MT, such as USDOT 1234567 MT. Type it, preview it, order. $18.99 per decal.
- 3M / Oracal vinyl, made to order
- 3-year guarantee: free replacement if it peels or comes off
- Tracking number emailed 1–2 days after you order
About this decal
A one-line decal that prints USDOT, your number and then MT, set up in the builder as USDOT 1234567 MT. As we read Montana rule ARM 18.8.1502, the Montana DOT Motor Carrier Services asks for the MT marking on certain intrastate commercial vehicles. Type your own number, check the live preview on a truck door, and pick a width and colors. It costs $18.99 per decal in 3M or Oracal vinyl, or $37.98 for a Set of 2, one for each door.
As we read the rule, it appears to cover intrastate commercial vehicles of 26,001 lb and over, vehicles hauling placarded hazardous materials, and vehicles built for more than 8 passengers for hire or more than 15 not for hire. Some for-hire passenger, household goods and garbage carriers over 10,000 lb may show a name, city and state, or a PSC/DOT number under MCA 69-12-408 instead. Confirm with Montana DOT Motor Carrier Services whether your truck is covered before you order. Source: ARM 18.8.1502.
This decal prints one line and no company name. The federal marking rule, 49 CFR 390.21, asks for the carrier's name together with the USDOT number, so a covered truck may also need the name lettered. You can cover that with the Company Name Decal at $18.99 for the name alone, or the Company Name + USDOT Decal at $27.99 for the name and number on one rectangle. Confirm with the agency what your truck needs.
Shipping, install and guarantee
Shipping is $7.99 per order, free over $99, with tracking by email one or two days after you order. Install is DIY with a printed sheet and video link in the box. A 3-year guarantee covers a free replacement if it peels or comes off. Details: shipping, install, refunds and returns.
Questions about this decal
Which Montana trucks need the MT suffix?
As we read ARM 18.8.1502, the rule covers intrastate commercial vehicles of 26,001 lb and over, vehicles hauling placarded hazardous materials, and vehicles built for more than 8 passengers for hire or more than 15 not for hire. Montana DOT Motor Carrier Services decides whether your truck falls under it, so ask them in writing before you order. Source: ARM 18.8.1502.
What if my truck also drives into other states?
The rule as we read it is about intrastate travel, meaning trips inside Montana. A truck that also crosses state lines should ask FMCSA and Montana DOT Motor Carrier Services which marking applies before any letters go on the door. The federal rule, 49 CFR 390.21, sets the general USDOT marking. Our state requirements guide is a starting point for other states.
Where on the truck does the MT decal go?
The rule text we read does not name a spot on the vehicle. The federal rule, 49 CFR 390.21, asks for the USDOT marking on both sides of the vehicle. Check Montana's rule for any placement wording of its own, and confirm with Montana DOT Motor Carrier Services. Our guide to where to put a USDOT number covers doors, cabs and common mistakes.
Real Etsy reviews
Read more reviews →What buyers say
4.7 out of 5 across 97 reviews on Etsy, 2022 to 2025.
★★★★★
Easy to apply and directions were very clear. Pleased with the product and would order again.
★★★★★
Good communication with seller. Easy to install.
★★★★★
I had quite a few questions before ordering, all of which were answered promptly on a Sunday, which I was so thankful for. My order arrived much earlier than expected and the quality is amazing! I will definitely be ordering again in the future.
You may also like
All decals →Regulation numbers
Pa.P.U.C. Number Decal (Pennsylvania)
Pa.P.U.C. No. A- followed by your number, such as Pa.P.U.C. No. A-123456. Type it, preview it, order. $18.99 per decal.
$18.99per decal
Regulation numbers
PUCO Number Decal (Ohio)
PUCO and your number, such as PUCO 123456. Type it, preview it, order. $18.99 per decal.
$18.99per decal
Regulation numbers
APSC Number Decal (Alabama)
APSC Cert., Permit or Reg. No. and your number, such as APSC Cert. 12345. Type it, preview it, order. $18.99 per decal.
$18.99per decal
Total$18.99