Reference

UCR and BOC-3: the distinction

Separate obligations, separate authorities, separate frequencies. A row-by-row comparison.

Revised

01Comparison

Instrument
UCR: Annual registrationBOC-3: Designation of process agents
Frequency
UCR: Every registration yearBOC-3: Once, until agents change
Administered by
UCR: Participating statesBOC-3: FMCSA
Basis of charge
UCR: Power-unit countBOC-3: Flat fee
Output
UCR: Receipt and recordBOC-3: Designation on file
Failure mode
UCR: Roadside enforcementBOC-3: Authority not granted

02Common confusion

Both are obligations of interstate operators and both are commonly arranged at the same time, during an authority application. They are otherwise unconnected: neither filing affects the status of the other.

Related sections
The UCR annual cycleSeason opening, due date, enforcement date, and the consequences of late registration.
Order lifecyclePayment, processing and government record are three separate states. What each one is and how to check it.
Census data accuracySources of drift in the FMCSA record, which fields affect a filing, and the limits of correcting them here.

Roadway Compliance is a private filing service. Not affiliated with the FMCSA, the UCR Plan, or any government agency.