BOC-3 filing for small fleets
You need one BOC-3 per MC docket, not one per truck. A fleet running 3 trucks and a fleet running 30 trucks file the exact same single designation, because the BOC-3 attaches to your operating authority and legal entity — not to vehicles. We file it the same business day for $75 flat, one-time, lifetime.
File your fleet BOC-3 - $75One BOC-3 per authority, regardless of fleet size
The single most common fleet-scale question is whether each truck needs its own BOC-3. It does not. The BOC-3 designates a process agent — a party authorized to accept legal service in every state — for the legal entity that holds the operating authority. Trucks are never named on it, so adding equipment, swapping a tractor, or doubling your fleet has no effect on the filing.
What the BOC-3 actually covers
One designation per MC operating-authority docket and its legal entity under 49 CFR 366.4. Dry van, reefer, flatbed, or a mix — all under the same authority — share a single BOC-3. The blanket process-agent network covers all 50 states at once.
What scales with each vehicle (not the BOC-3)
Your insurance limits, your UCR fleet bracket, and the power-unit count on your MCS-150move with fleet size. The BOC-3 does not — it stays one filing whether you run 2 trucks or 20.
The practical takeaway: scale your fleet without touching the BOC-3. For the full picture of who the designation covers and how it works, see the pillar guide on the BOC-3 process-agent designation.
When a growing fleet actually needs a second BOC-3
There are exactly two situations where scaling triggers an additional filing — and both are about authority and entities, never about truck count.
- 1
A second operating authority under a separate legal entity
If you spin up a new LLC with its own MC docket — say, a separate reefer company, a brokerage arm, or a regional subsidiary — that entity is a legally distinct carrier and needs its own BOC-3. Two entities, two dockets, two designations. (Two authorities under the same entity can share one BOC-3, since the designation follows the entity.) See whether two companies can share a BOC-3.
- 2
Acquiring a carrier and keeping its MC number alive
The BOC-3 follows the acquired docket. If you keep the bought carrier operating under its own name and MC number, its existing BOC-3 stays in force. If you transfer the authority into your entity or change the legal name, FMCSA treats it as a new designation event — file a fresh BOC-3 in the surviving entity name so the public registry matches the operator.
What never triggers a second BOC-3
- Buying more trucks or trailers, or replacing equipment.
- Adding a new trailer type (dry van to reefer) under your existing authority.
- Hiring more drivers, opening a second terminal, or expanding your lanes into new states — the blanket BOC-3 already covers every state.
The small-fleet authority stack
Most filings for a small dry-van or reefer fleet scale with the number of power units. The BOC-3 is the one that does not — it is a single flat filing per docket, and the cheapest line on the list.
- 1
USDOT number + OP-1 authority application
Filed once per entity adding interstate for-hire authority. The OP-1 starts a 20-day window (49 CFR 365.109T) for your supporting filings to land. New fleets file at the current FMCSA registration portal, Motus.
- 2
BOC-3 designation - $75 one-time, one per docket (this is us)
Filed within the 20-day window by a registered blanket process-agent provider. Lifetime, no annual renewal, and the same single filing no matter how many trucks the fleet runs.
- 3
BMC-91 insurance filing (49 CFR Part 387)
Your insurer files proof of financial responsibility. The $750,000 minimum public-liability requirement applies to general freight; premiums climb with each additional power unit, so this is where fleet size really bites.
- 4
UCR registration (fleet-bracket fee)
Annual federal-state fee billed by fleet-size bracket — a 6-truck fleet pays more than a 2-truck fleet. Filed at FastUCRFiling.
Common small-fleet BOC-3 mistakes
Paying for a BOC-3 per truck
Some operators (or sloppy filing services) charge per vehicle. There is no per-truck BOC-3 — one $75 designation covers the entire fleet under a single MC docket. If you are quoted a per-truck price, you are being overcharged.
Forgetting a fresh BOC-3 when an acquired authority changes hands
When you buy a carrier and move its authority into your entity or rename it, the public process-agent record can end up pointing at the old operator. File a current BOC-3 in the surviving entity name so service of legal process actually reaches you.
Assuming a new entity inherits the parent fleet’s BOC-3
A second LLC with its own MC docket is a separate carrier — it cannot ride on the first entity’s BOC-3. Each operating authority held under a distinct legal entity needs its own designation under 49 CFR 366.4.
Small-fleet BOC-3 questions
Do I need a separate BOC-3 for each truck in my fleet?
No. The BOC-3 is a process-agent designation tied to your FMCSA operating authority (your MC docket) and the legal entity that holds it - not to individual vehicles. A fleet running 3 trucks and a fleet running 30 trucks under the same MC number both file exactly one BOC-3. Adding, selling, or replacing trucks never triggers a new BOC-3, because the trucks were never on the BOC-3 to begin with.
I run a dry-van fleet and want to add a reefer operation - do I need a second BOC-3?
Only if the reefer operation runs under a separate legal entity with its own MC number. If you simply add reefer equipment under your existing authority and entity, your current BOC-3 already covers it - the designation does not care what commodity or trailer type you haul. If you form a new LLC for the reefer side and pull a second MC docket, that new entity needs its own BOC-3 because it is a legally distinct carrier.
My fleet has more than one USDOT number - does that mean more than one BOC-3?
Not necessarily - it depends on the operating authority, not the USDOT number. A BOC-3 is required for each MC operating-authority docket. Many fleets carry extra USDOT numbers from old registrations or intrastate operations that never had MC authority and therefore never needed a BOC-3. If you hold multiple active MC dockets (for example, separate carrier and broker authorities under different entities), each one needs its own designation; if everything operates under a single MC number, one BOC-3 is enough.
I am buying another carrier and keeping their MC number alive. What happens to the BOC-3?
The acquired authority keeps its own BOC-3 obligation because the BOC-3 follows the MC docket and its legal entity. If you keep the acquired carrier operating under its existing name and MC number, its existing BOC-3 stays on file. If you transfer the authority into your entity or change the legal name, FMCSA treats it as a new designation event and you should file a fresh BOC-3 in the surviving entity name so the public record matches. When in doubt, file a current BOC-3 for the entity that will actually operate the authority - it is one $75 filing either way.
Can my small fleet self-file its own BOC-3 to save the fee?
No. A motor carrier operating commercial motor vehicles cannot designate itself - under 49 CFR 366.4 the process agent must be a third party with a representative in each state where the carrier operates. Only an FMCSA-registered blanket process-agent company can submit the BOC-3 and appear in the public registry at li-public.fmcsa.dot.gov. The narrow self-designation carve-out in 49 CFR 366.4(b) applies only to brokers and freight forwarders that operate no commercial motor vehicles - which a dry-van or reefer fleet, by definition, is not.
Does growing from 2 trucks to 20 trucks change my BOC-3 in any way?
No. Fleet size has zero effect on the BOC-3 - the price ($75), the form, the blanket coverage across all states, and the lifetime designation are identical whether you run one power unit or a hundred. The filings that scale with fleet size are your insurance limits, your UCR fleet bracket, and your MCS-150 vehicle count, not your process-agent designation.
File your fleet BOC-3 today
$75 flat, one-time, one per MC docket. Filed with the FMCSA the same business day — same single designation whether you run 2 trucks or 20.
Start Filing for $75