USDOT Number

Also known as: DOT Number, US DOT Number

By Korey Sharp-Paar · Reviewed by the Fast Trucking Compliance team

Definition

The USDOT number is the permanent federal safety identifier FMCSA assigns to a motor carrier under 49 CFR Part 390. Free to apply for through the FMCSA Motus registration system (which replaced the legacy URS portal on May 14, 2026). Required for any commercial vehicle operating in interstate commerce above the GVWR thresholds, for hazmat-placardable shipments at any weight, and for 9+ passenger commercial vehicles for hire. Many states also require a USDOT for in-state CDL operations. The USDOT number stays with the carrier for life and is the primary key for the FMCSA safety record. Distinct from the MC number, which is a separate operating authority docket required for for-hire interstate carriers.

Authoritative source

49 CFR Part 390 - General regulations

DOT Number Cost & Process

What a USDOT number actually costs, plus the timeline from application to ACTIVE.

Related terms

MC Number(Motor Carrier Number)
FMCSA(Federal Motor Carrier Safety Administration)
MCS-150(Motor Carrier Identification Report)

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