What Is a DOT Number?
A USDOT number is issued by the Federal Motor Carrier Safety Administration (FMCSA). It is used to:
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Track a carrier’s safety record
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Monitor compliance reviews and inspections
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Identify commercial vehicles in interstate commerce
Who Needs a USDOT Number in Oregon?
You must obtain a USDOT number if you operate:
Interstate Commerce
Any vehicle that:
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Transports goods or passengers across state lines
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Is involved in interstate trade (even if operating only within Oregon)
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Has a GVWR of 10,001 pounds or more
Intrastate Commerce (Within Oregon Only)
Oregon may require a DOT number for:
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Vehicles with a GVWR over 10,000 pounds
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Vehicles transporting hazardous materials
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Passenger carriers meeting federal thresholds
How to Apply for a USDOT Number
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You can call to (503) 386-4187 and apply for the USDOT number.
Additional Oregon Commercial Vehicle Requirements
In addition to a USDOT number, Oregon carriers may need:
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Oregon Weight-Mile Tax account (for vehicles over 26,000 lbs)
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IRP registration for interstate fleets
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IFTA license for fuel tax reporting
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Proper vehicle registration through the Oregon DMV
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Insurance meeting federal and state minimums
Required Markings on Commercial Vehicles
Oregon commercial vehicles must display:
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Legal business name
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USDOT number
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City and state of principal place of business
Markings must be visible from at least 50 feet and contrast with the vehicle color.
Compliance & Enforcement
Commercial vehicles in Oregon are subject to:
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Roadside inspections
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Safety audits
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Weight checks at ports of entry
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Electronic logging device (ELD) requirements
Failure to comply may result in:
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Fines and penalties
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Out-of-service orders
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Suspension of operating authority
Common Mistakes to Avoid
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Operating without a required USDOT number
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Not updating company information with FMCSA
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Incorrect vehicle weight classification
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Missing Weight-Mile Tax registration