Motor Carrier (MC) Number Display — FMCSA
Regulation 49 CFR 390.21(b)(2) · Canada
§The Law
49 CFR 390.21(b)(2) — Regulation 49 CFR 390.21(b)(2)
“For-hire carriers subject to FMCSA registration must display their MC number (Operating Authority number) on the power unit in addition to the USDOT number.”
View official regulation text✓Plain English
For-hire carriers (who move freight for pay across US state lines) need an MC number in addition to a USDOT number. Both are displayed on the truck.
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Specific Requirements
MC number displayed alongside USDOT
Required for for-hire carriers
Both numbers on both sides of cab
MC number format: "MC-1234567"
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Shop USDOT DecalsOr call (289) 228-7021Regulation Quick Facts
- Regulation
- 49 CFR 390.21(b)(2)
- Jurisdiction
- 🇨🇦 Canada
- Category
- Cross-Border Compliance
What if 49 CFR 390.21(b)(2) changes next year?
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