FMCSA Motor Carrier Identification — 49 CFR 390.21
Regulation 49 CFR 390.21 · Canada
§The Law
49 CFR 390.21 — Regulation 49 CFR 390.21
“All commercial motor vehicles operated in the US must display the USDOT number and operating carrier name on both sides of the power unit per 49 CFR 390.21.”
View official regulation text✓Plain English
Any truck operating in the USA needs a USDOT number and the operating company name on both sides of the cab — even if the truck is Canadian.
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Specific Requirements
USDOT number on both sides — 2" min
Operating carrier name both sides
Applies to any vehicle operating in USA
Includes Canadian trucks crossing border
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Shop USDOT DecalsOr call (289) 228-7021Regulation Quick Facts
- Regulation
- 49 CFR 390.21
- Jurisdiction
- 🇨🇦 Canada
- Category
- Cross-Border Compliance
What if 49 CFR 390.21 changes next year?
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Compliance Certificate
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