Support:
24/7Support:
FastTruckingCompliance

Comparison

UCR vs IRP: federal registration vs apportioned plate

Quick answer

UCR is a federal interstate-carrier registration under 49 USC §14504a tied to your USDOT/MC number, paid annually at flat per-fleet-size rates by December 31 through any of the 41 UCR-participating states. IRP is a multistate plate-apportionment system under the IRP Plan and 49 CFR Part 384 that distributes vehicle registration fees across the states a qualified motor vehicle operates in, proportional to miles driven in each jurisdiction. UCR applies to any interstate carrier operating commercial motor vehicles of 10,001+ lbs GVWR or GVW; IRP applies to qualified motor vehicles (over 26,000 lbs GVW or three or more axles) running in two or more member jurisdictions - they cover different things and one cannot substitute for the other. UCR is a flat carrier-level fee tied to fleet bracket; IRP is per-vehicle, per-state, and is paid to the carrier's base jurisdiction (typically the state of legal domicile), which then redistributes apportioned shares to other IRP member jurisdictions. Both are checked at state weigh stations via PRISM and IRP databases.

Reviewed by Korey Sharp-Paar · Updated

Workflow: apply IRP first, UCR second

For a new authority, IRP is part of the launch sequence - you cannot operate the truck without a plate. UCR follows once the carrier has an MC number and counts the trucks in service. The IRP plate is a vehicle-level identifier; UCR is a carrier-level identifier. Both renew annually but on different cycles, so most carriers calendar both in a single "Q4 compliance review."

One step sits ahead of both, because it gates the MC number the rest of the sequence depends on: for-hire MC and freight-forwarder authority does not activate until a BOC-3 process-agent designation (BOC-3 filing) is on file. 49 CFR 365.109T gives an applicant 20 days from the FMCSA Register notice before the application is dismissed. Neither an IRP plate nor a UCR receipt substitutes for it, and it is one-time - there is no annual BOC-3 renewal to calendar alongside IRP and UCR.

How do UCR and IRP compare?

AttributeUCRIRP
What it registersThe carrier (entity-level, by USDOT)A specific vehicle (license plate, by VIN)
Legal source49 USC §14504aIRP Plan (multistate compact)
Who must fileAll interstate carriers (for-hire and private)Operators of qualified motor vehicles in 2+ IRP jurisdictions
Fee basisFlat by 6-bracket fleet sizeApportioned: each state's commercial registration × miles in state ÷ total miles
Renewal cadenceAnnual, due Dec 31Annual (states stagger renewal months)
Filed withBase-state UCR administratorBase-jurisdiction DMV/MVD/DOR
ReciprocityOne filing covers all 50 states + D.C.One apportioned plate covers all IRP jurisdictions for that vehicle

When should you choose UCR or IRP?

When to choose UCR

When you need UCR

Every interstate carrier needs UCR - fleet size from 1 to 1,000+, for-hire or private, general property or HazMat. FMCSA sets the UCR fee schedule by rulemaking under 49 USC §14504a, and the fees stay in place until a later rulemaking changes them (91 FR 56063); for 2027 the brackets are: 0–2 vehicles $55, 3–5 vehicles $167, 6–20 vehicles $333, 21–100 vehicles $1,163, 101–1,000 vehicles $5,548, 1,001+ vehicles $54,165. Pay once per year and the registration is good in all 50 states + D.C.

When to choose IRP

When you need IRP

IRP is required when a carrier operates a qualified motor vehicle (>26,000 lb GVWR or 3+ axles) in two or more IRP member jurisdictions (48 U.S. states, D.C., and 10 Canadian provinces - Alaska and Hawaii are not in IRP). The carrier's base-jurisdiction DMV issues a single "apportioned plate" that covers all IRP jurisdictions for the year, and the apportionment formula splits the registration fees among states based on miles driven the prior year.

What's the next step in your filing?

File your UCR registration

We prepare your UCR registration; it is submitted to the National UCR System. Tier 1 (0-2 power units) is $90 ($55 UCR government fee + $35 service fee). For IRP plate work, see the Fast Trucking Compliance guides.

Start your UCR order - from $90

Informational only - not legal advice.

Independent filing service operated by Fast Filing Group LLC. Not affiliated with FMCSA, USDOT, UCR.gov or any government agency.

Frequently asked questions

Is UCR the same as my IRP plate?

No. UCR is a federal interstate-carrier registration tied to your USDOT/MC number - it covers the carrier as a whole, not any specific vehicle. IRP is a multistate plate program that apportions vehicle registration (the metal plate on the bumper) across all the states a CMV operates in. UCR fees are flat by fleet size; IRP fees are proportional to miles driven in each member state.

Do I need IRP if I only operate in one state?

No. IRP is only required for interstate operation of a qualified motor vehicle (>26,000 lb GVWR or 3+ axles). Pure-intrastate carriers register a normal commercial plate at their state DMV. UCR also does not apply to purely intrastate operations - it is a federal interstate filing.

Which agency runs which?

UCR is administered by the Unified Carrier Registration Plan, a nonprofit overseen by FMCSA, and processed through state UCR administrators. IRP is administered by IRP, Inc., a multistate compact, and processed through each carrier's base-jurisdiction DMV.

Authoritative citations

Related guides