If you are setting up a new interstate operation, four separate registrations get confused for one another constantly: UCR, IRP, IFTA, and BOC-3. Each is a distinct legal obligation under its own rulebook, and none of them satisfies any of the others. This guide is the new-carrier checklist: what each filing is, the order to do them in, and how to tell at a glance which ones you still owe. For the three-way comparison without BOC-3, see the UCR vs IRP vs IFTA guide.
The Short Answer: Four Filings, Four Rulebooks
A new interstate carrier almost always needs all four. They divide cleanly by what they actually do:
- BOC-3 — a one-time designation of a process agent in every state to accept legal service on your behalf. Authority: 49 CFR Part 366.
- UCR — an annual fee registration funding state enforcement, tiered by fleet size. Authority: 49 USC §§13301, 14504a and 49 CFR Part 367.
- IRP — apportioned vehicle registration (the plate and cab card) for qualified vehicles operating in two or more jurisdictions. Governed by an interstate compact.
- IFTA — quarterly fuel-tax reporting for qualified vehicles run across member jurisdictions. Governed by an interstate compact.
The single most useful mental model: BOC-3 is who gets sued for you. UCR is the annual fee. IRP is the plate. IFTA is the fuel tax. Different questions, different agencies, different cadences.
BOC-3: One-Time Process-Agent Designation
BOC-3 is the odd one out, because it is the only filing of the four that you do once. A process agent is a representative in each state on whom court papers can be served in any proceeding against your company. Under 49 CFR Part 366, every motor carrier, broker, and freight forwarder must have a process-agent designation on file, and FMCSA keeps only one BOC-3 per registrant at a time. There is no annual renewal — you re-file only if your agent coverage changes or your authority is reinstated.
Timing matters here: FMCSA requires the BOC-3 designation at the time of your operating-authority application. A motor carrier cannot file its own BOC-3 (a process agent files it for you), while a broker or freight forwarder without commercial vehicles may file on its own behalf. Practically, BOC-3 is one of the first boxes a new carrier checks — you can handle it through a process-agent service like FastBOC3 Filing and then leave it alone for the life of the authority.
UCR: The Annual Fee You Owe Every Year
Unified Carrier Registration is the annual fee program under 49 USC §§13301, 14504a and 49 CFR Part 367. Every interstate motor carrier, freight broker, freight forwarder, and leasing company files once per calendar year and pays a fee tiered by fleet size. The money is pooled federally and remitted to participating states, which use it to fund commercial-vehicle enforcement and new-entrant safety audits. The 2026 federal fee schedule (verified against 49 CFR §367.50) runs as follows:
| Bracket | Vehicles | 2026 federal fee |
|---|---|---|
| B1 | 0–2 | $46 |
| B2 | 3–5 | $138 |
| B3 | 6–20 | $276 |
| B4 | 21–100 | $963 |
| B5 | 101–1,000 | $4,592 |
| B6 | 1,001+ | $44,836 |
Brokers, freight forwarders, and leasing companies that operate no trucks pay the lowest bracket (B1) regardless of revenue, because UCR counts vehicles operated, not loads moved — covered in detail in the UCR for brokers and forwarders guide. Enforcement of each registration year begins January 1 with no grace period, so UCR is a recurring line item, not a one-and-done. When you are ready, our UCR filing service handles base-state routing and same-business-day submission from $80 (Tier 1), with the federal fee line-itemized; you can also file directly at ucr.gov and pay only the federal portion. The full walkthrough is in the how to file UCR guide.
IRP and IFTA: Plates and Fuel Tax
The International Registration Plan is apportioned vehicle registration — it issues the apportioned plate and the cab card listing the jurisdictions a truck is authorized to run in. IRP fees are apportioned by the percentage of miles operated in each member jurisdiction, so the cost is mileage-driven rather than flat. It applies to qualified vehicles operating in two or more jurisdictions, administered through your base state.
The International Fuel Tax Agreement is a fuel-tax cooperative among the lower-48 U.S. states and the Canadian provinces. Carriers running qualified vehicles in more than one IFTA jurisdiction file quarterly returnsreporting miles and fuel by jurisdiction, plus an annual license and decals. IFTA reconciles tax already paid at the pump against tax owed by jurisdiction — it moves where the revenue lands, it does not add a separate flat fee the way UCR does. Both IRP and IFTA are tied to qualified vehicles(generally over 26,000 pounds, or three or more axles), so a small-truck or zero-truck operation may not trigger them at all — while still owing UCR and BOC-3.
Side-by-Side: All Four
| Filing | What it is | Cadence | Basis | Authority |
|---|---|---|---|---|
| BOC-3 | Designation of process agents for legal service | One-time (no renewal) | One agent designated per state | 49 CFR Part 366 |
| UCR | Annual fee registration funding state enforcement | Annual (calendar year) | Tiered flat fee by fleet size | 49 USC §§13301, 14504a; 49 CFR Part 367 |
| IRP | Apportioned vehicle registration / plates | Annual (base-state cycle) | Mileage apportioned across jurisdictions | International Registration Plan compact |
| IFTA | Fuel-tax reporting & reconciliation | Annual license + quarterly returns | Fuel purchased + miles by jurisdiction | International Fuel Tax Agreement compact |
The New-Carrier Filing Checklist (In Order)
For a new interstate carrier setting up authority, the practical order is:
- USDOT number — register with FMCSA.
- MC operating authority— for for-hire carriers, brokers, and forwarders.
- BOC-3 — process-agent designation, required at the time of your authority application. One-time.
- UCR — file for the current calendar year before you operate, then renew every year.
- IRP — apportioned plates through your base-state DMV, if you run qualified vehicles in two or more jurisdictions.
- IFTA — license and decals through your base state, then quarterly fuel-tax returns.
Insurance, drug-and-alcohol testing enrollment, and ELD compliance run in parallel with these. The two filings a brand-new carrier can knock out immediately — before a single truck rolls — are BOC-3 and UCR. IRP and IFTA depend on having qualified equipment to register and a base state to register it in.
Why None of Them Covers the Others
The recurring failure mode is assuming one filing handles another. It never does:
- BOC-3 is not UCR. Designating a process agent does nothing for your annual UCR fee, and a current UCR does not put a process agent on file. A carrier can have a perfect BOC-3 and still be UCR-delinquent on January 1.
- UCR is not IRP or IFTA.A roadside UCR check queries the National UCR Registration System — not the IRP plate database or the IFTA decal record. Holding plates or a decal does not register you for UCR. See the UCR vs IRP vs IFTA breakdown for the program-by-program contrast.
- Same portal, different filings.Many state DOT portals offer UCR, IRP, and IFTA under one login. Completing one in a session does not complete the others — each has its own form, fee, and confirmation.
If you want the deeper background on what UCR is and how it sits on top of your other FMCSA filings, start with the what is UCR registration guide. For broader compliance scaffolding across the whole startup, the trucking compliance hub maps how every piece fits together.
Bottom line:A new interstate carrier files four separate things. BOC-3 designates your process agents once and never renews. UCR is the annual fee, owed before you operate every year. IRP is the apportioned plate for qualified vehicles, and IFTA is the quarterly fuel tax. Four rulebooks, four confirmations — and not one of them covers another. Knock out BOC-3 and UCR first, then handle plates and fuel tax through your base state.