Required Federal Markings
Covered vehicles generally display the operating carrier legal name or one trade name and the assigned number preceded by USDOT.
Federal commercial vehicle guide
USDOT Number Requirements
Understand the federal USDOT marking rules for covered commercial motor vehicles, including required wording, placement, contrast and legibility.
Reviewed against official federal guidance
Practical USDOT Compliance Guidance
Placement and Visibility
Mark both sides, use sharply contrasting colors and keep the information legible in daylight from 50 feet while stationary.
Federal vs State Rules
Intrastate and specialized operations may have additional state requirements. Verify the responsible state agency before operating.
Related compliance resources
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