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North Dakota has adopted Sec.390.21 of the Federal Regulations.*
The following intrastate vehicles are subject to display of USDOT number and legal company name:
*North Dakota has adopted the USDOT marking regulations in �390.21 for intrastate CMVs. However, the state is not currently enforcing this regulation. Check with the state regarding any changes in this enforcement policy.
All commercial motor carriers (for-hire and private) operating interstate are subject to the marking requirements of 49 CFR 390.21 which requires all CMVs to display, on both sides of the power unit, the US DOT number and the legal name of the business entity that owns or controls the motor carrier operation, or the �doing business as� (DBA) name, as it appears on the Form MCS-150.
Any new or used commercial vehicles added to a motor carrier�s fleet must be identified with the US DOT number and single trade name before being put into service.
The regulations do not require the city/state or MC number to be displayed on the vehicle.