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. Your BOC-3 is filed soon after you order for $75 flat, one-time, lifetime.
One 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 current BOC-3 on file per authority holder (49 CFR 366.2T: only one completed current form may be on file). Dry van, reefer, flatbed, or a mix — all under the same authority — share a single BOC-3. The blanket process-agent network (49 CFR 366.5T) 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-150 move 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 with 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 BOC-3 filing 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 366.4T.
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. Motor carriers operating commercial motor vehicles can't file their own BOC-3 (FMCSA Form BOC-3 page). A process-agent company files it for them, most often a blanket company whose agent list is on file with FMCSA (49 CFR 366.5T). It must name an agent in each state where the carrier operates or travels (49 CFR 366.4T). The self-filing option on FMCSA’s Form BOC-3 page 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 soon after you order — same single designation whether you run 2 trucks or 20.
Start Filing for $75