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UCR Guide

Who must register under UCR annually, how fleet size determines the fee bracket, and why registering for the wrong year is the most common compliance gap.

Quick Answer

UCR (Unified Carrier Registration) is a federally mandated annual registration program requiring interstate motor carriers, brokers, freight forwarders, and leasing companies to pay a per-vehicle fee — UCR registration is year-specific, does not renew automatically, and must be completed through the UCR Plan or a participating state agency each calendar year. See the New Authority Checklist if you also need a USDOT number or MC number.

UCR checks should be tied to entity type, annual fee year, and new-authority planning. Who Needs UCR, UCR Fees, New Authority Checklist.

Who This Applies To

Interstate motor carriers — for-hire and private, property and passengers — required to pay an annual per-vehicle fee based on fleet size.
Freight brokers and freight forwarders engaged in interstate commerce, who register as non-carrier entities and pay a flat annual fee regardless of fleet size.
Leasing companies that lease commercial motor vehicles to interstate motor carriers, registered under a separate UCR leasing company category.
New authorities completing the initial registration sequence alongside FMCSA registration, BOC-3, IFTA, and IRP before the first interstate trip.

What To Verify

The registration year. UCR is year-specific — a registration for 2025 does not cover 2026, and the window for a new year typically opens in October of the prior year.
The entity type: motor carrier, freight broker, freight forwarder, or leasing company. Brokers and forwarders use a different fee bracket from carriers.
The current-year fee bracket at plan.ucr.gov. Fee amounts change annually and cannot be reliably determined from third-party sources or prior-year copies.
Whether any exemption applies — certain government vehicles and carriers of specific exempt agricultural commodities may not be subject to UCR.

Step-by-Step Overview

Confirm entity type before registering. Motor carriers, freight brokers, freight forwarders, and leasing companies each register under different categories with different fee structures.
Count commercial motor vehicles (trucks, tractors, buses — not trailers) that operated in interstate commerce during the registration year.
Open plan.ucr.gov and verify the current-year fee bracket for the entity type and vehicle count. Do not use fee tables from prior years or third-party sources.
Complete registration through the UCR Plan portal or a participating state agency and pay the correct fee for the correct registration year.
Save the registration confirmation showing the year, entity type, vehicle count bracket, and payment reference.

Common Mistakes

Registering for the wrong year. When the window opens in October, it covers the following calendar year — October 2025 registration covers 2026, not 2025.
Including trailers in the vehicle count. Power units (trucks, tractors, buses) count; trailers do not. A one-truck owner-operator registers in the 1–2 vehicle bracket regardless of how many trailers are in service.
Using a fee figure from a third-party site or prior-year email. UCR fees change annually — only plan.ucr.gov is authoritative for the current registration year.
Assuming FMCSA authority registration doubles as UCR registration. The two programs are completely separate — active FMCSA authority does not substitute for annual UCR registration.

Official Sources

Unified Carrier Registration Plan UCR Plan · official-organization · accessed 2026-05-06
Use for UCR overview, registration, and annual renewal prompts.
Do I Need to Register? UCR Plan · official-organization · accessed 2026-05-06
Use for UCR applicability pages and direct users to the official wizard.
UCR Fee Brackets UCR Plan · official-organization · accessed 2026-05-06
Use for year-labeled UCR fee references and tools; remind users fees may change by registration year.

Who Needs UCR

Learn which interstate trucking-related entities should verify UCR registration status using official UCR Plan sources.

UCR Fees by Registration Year

Use the official UCR Plan fee-brackets page for the correct registration year instead of relying on copied fee tables.

New Authority Checklist

A practical checklist for newly formed trucking authorities, including USDOT, operating authority, BOC-3, UCR, and records.

FAQ

Is UCR registration the same as FMCSA authority registration?

No. UCR is a separate annual fee-based registration administered by the UCR Plan, while FMCSA authority (USDOT number and MC number) is a federal safety and authority registration. Both may be required for interstate motor carriers, and neither registration substitutes for the other.

Is UCR registration required every calendar year, or does it carry over automatically?

UCR registration must be renewed each calendar year. Fees paid for the prior year do not carry over. A carrier must complete new UCR registration before January 1 or before beginning any interstate operations in the new calendar year. Operating without current-year UCR registration is a violation even if the prior year was paid in full and operations are otherwise compliant.

Who administers the UCR program, and where do the fees go?

The UCR Plan — the organization established by the UCR Agreement — manages the national registration system and fee schedule. Fees collected through the system are distributed to participating states based on a formula in the UCR Agreement. States use UCR funds for commercial vehicle safety enforcement programs. Carriers register through the UCR Plan's national portal, not directly with individual states.