How UCR Applies to Interstate Commerce

Dec. 28, 2025, 11:13 a.m.
Interstate commerce means transportation of goods or passengers across state lines, or transportation within one state that is part of an interstate movement.
UCR for Interstate Carriers

Why UCR Is Required for Interstate Commerce

The UCR program was created to:

  • Replace older state-by-state carrier registration systems

  • Allow states to collect fees from interstate carriers

  • Fund motor carrier safety enforcement and compliance programs

If you operate in interstate commerce, UCR registration is mandatory unless you qualify for a specific exemption.


 Who Must Register for UCR in Interstate Commerce?

You must register for UCR if you operate interstate as any of the following:

  • For-hire motor carriers

  • Private motor carriers

  • Brokers

  • Freight forwarders

  • Leasing companies

This applies whether you are:

  • A single-truck owner-operator

  • A fleet carrier

  • Based in any U.S. state or U.S. territory


 What Vehicles Are Covered?

UCR applies to commercial motor vehicles that:

  • Have a GVWR or GCWR of 10,001 lbs or more, or

  • Are used to transport hazardous materials requiring placards


 UCR Applies Even If:

  • You operate in only one state but your freight crosses state lines

  • You already have a USDOT number

  • You are registered for IRP or IFTA

  • You rarely run interstate loads (even one trip triggers UCR)


 Who Is Exempt from UCR?

UCR generally does not apply to:

  • Intrastate-only carriers (no interstate connection)

  • Vehicles under 10,001 lbs not hauling placarded hazmat

  • Certain government and non-profit vehicles


UCR Is an Annual Requirement

  • UCR must be renewed every year

  • Fees are based on the number of commercial vehicles

  • Failure to register can result in fines, roadside enforcement, or vehicle out-of-service orders


 Enforcement of UCR in Interstate Commerce

UCR compliance is enforced through:

  • Roadside inspections

  • Weigh stations

  • State permit systems

  • FMCSA data checks

Multiple states actively enforce UCR compliance.

 

https://plan.ucr.gov/frequently-asked-questions/