Your Carrier Also Has a Broker License. You Probably Don't Know That.

I pulled a carrier last spring that looked solid. MC-1247893, DOT-3567102. Fourteen months of authority. Nine inspections, two violations, both minor. Unsafe Driving BASIC at 42%. Nothing alarming. I booked the load — a $68,000 pharmaceutical pallet from Memphis to Lenexa — sent the rate con, and figured we were done.

The truck that showed up had a different MC on the door.

That carrier — the one that actually moved my customer's freight — had 6 months of authority and a Vehicle Maintenance OOS rate of 31%. If I'd pulled their SAFER snapshot, I would have declined them without a second thought. But I didn't pull them, because I didn't know they existed. The carrier I vetted had tendered my load to a sub-carrier using their broker authority, and nobody told me.

Nothing went wrong on that particular load. But I spent two hours on the phone with my customer's traffic manager explaining why the truck at their dock had a different name on it than the rate con. I didn't have a great answer.

What Dual Authority Actually Means

When a company applies for FMCSA operating authority, they can register as a motor carrier, a broker, or both. These are separate authority types with separate MC numbers, separate bond/insurance requirements, and separate regulatory obligations. A company can legitimately hold carrier authority under one MC and broker authority under a related entity at a different MC.

This isn't rare or exotic. Large trucking companies — the ones with brokerage divisions — do it routinely. So do plenty of mid-size operators who run their own trucks but also act as "load coordinators" for freight they can't cover with their own equipment. From FMCSA's perspective, both functions are authorized. The company just has to meet the separate requirements for each.

Here's where it gets complicated for brokers and shippers who are vetting: when you pull MC-1247893 on SAFER, you're pulling the carrier authority record. You see their inspections, their BASICs, their safety rating, their insurance filings. You don't see that the same principals own MC-7834621, a registered freight broker, unless you go looking for it.

And most vetting checklists don't go looking for it.

The Regulatory Framework

49 CFR § 371.2 defines a "broker" as a person who, for compensation, arranges or offers to arrange the transportation of property by an authorized motor carrier, and who is neither the carrier nor the shipper's own agent. The key phrase is "arranges... by an authorized motor carrier." When a carrier with broker authority accepts your load and then tenders it to a different carrier, they are, in that moment, functioning as a broker — not as the motor carrier you contracted with.

That matters. Under 49 CFR § 371.7, a broker must provide the shipper with all relevant information about the transportation to be provided — including the identity of the motor carrier who will actually move the freight. If the carrier-turned-broker doesn't tell you they're farming out your load, they're not just creating an operational surprise. They're failing a regulatory disclosure obligation.

The practical enforcement of this is soft, I won't pretend otherwise. But in discovery after a crash, failure to disclose becomes evidence of a pattern: the entity handling your freight knew they were acting as a broker and chose not to tell you. That's a different conversation than "we had a mechanical failure."

Why Standard Vetting Misses This

The MC pull problem is simple. When you vet a carrier, you look up their MC number. You get one snapshot — the carrier authority record. The broker authority, if it exists, lives on a different MC number, often under a slightly different entity name ("Smith Trucking LLC" vs. "Smith Logistics Solutions LLC"). Same address, same principals, different legal entity, different FMCSA file.

You won't find it by looking at inspections or BASICs. It won't appear on their ACORD 25. The SAFER company snapshot will show you the carrier record you looked up, not the affiliated broker entity. The only way to catch it is to search for related authorities tied to the same principals, address, or phone number — which is additional investigative work most people don't do on every load.

I'm not being critical of standard vetting. The standard approach wasn't designed to catch this. It's designed to evaluate the carrier you contracted with. The problem is when the carrier you contracted with isn't the one who actually shows up.

The Load-Tender Question You're Not Asking

Once you identify that a carrier holds dual authority — carrier and broker — the right move at load tender isn't to automatically decline them. Plenty of dual-authority carriers run good operations and move your freight on their own equipment. The question to ask is specific:

Are you moving this load with your own equipment and drivers, or will you be arranging for another carrier to move it?

Get the answer in writing, even just an email reply. If they say their own equipment, you've created a representation you can rely on. If they say they'll be using another carrier, you now have two options: require that sub-carrier to go through your vetting process, or pull the freight and rebook it with a single-authority carrier you've already approved.

Neither option is particularly complicated. The hard part is knowing to ask the question in the first place — which means catching the dual authority before load tender, not after.

Why Montgomery Changes the Stakes Here

Before Montgomery v. Caribe Transport II (U.S. Supreme Court, May 14, 2026), a freight broker defendant could sometimes argue FAAAA preemption and push the case into a less favorable-for-plaintiffs forum. The Court eliminated that shield unanimously. State-law negligent selection claims against brokers now go forward without the preemption argument.

But here's the piece most people miss: the preemption argument was always weakest when the entity didn't hold themselves out purely as a common carrier. A dual-authority entity operating in a broker capacity on a given load may not have had the carrier preemption argument to begin with. If the carrier MC isn't the operating carrier on that move — if they used broker authority to place the freight — then the negligent selection analysis tracks the party who made the selection decision, not the party named on the rate con.

That's a complicated set of facts to sort out in discovery. But it's a lot better to sort them out before load tender than after a fatality. And the sorting starts with knowing which carriers on your approved list hold dual authority.

What the Discovery Record Looks Like

When a plaintiff's firm builds their case after a crash, they're going to pull every piece of paper connected to the load: the rate con, the dispatch communications, the load confirmation, the carrier's SAFER record, and anything related to the actual operating carrier who moved the freight.

If the truck at the scene belongs to a different MC than the one on your rate con, expect a deposition question that goes something like: "Did you know, at the time you tendered this load, that [Carrier A] also held broker authority and routinely arranged for other carriers to move freight they accepted?" If the answer is no — if you had no idea — that's going to require explanation. Did you ask? Did you have a policy about this? Is there anything in your carrier onboarding packet that addresses sub-contracting?

The better answer, the one that holds up, is: "Yes. When we onboarded this carrier, our system flagged that they held dual authority. Our policy requires that we ask, at load tender, whether they're moving the freight with their own equipment. We have their written confirmation that they were." That answer exists because you built the process to produce it.

How I Document This

When DOTScreener flags dual authority on a carrier file, here's what I document:

1. The carrier's primary MC (the one I contracted with) and the affiliated broker MC — both pulled with a timestamp.

2. The pre-tender confirmation: a short email or message in the load file asking "confirming this moves on your own equipment?" with their written reply.

3. If they disclose use of a sub-carrier: the sub-carrier's MC, a full SAFER pull on that entity, and a note recording that I completed a secondary screening and the results.

If the sub-carrier doesn't meet my standards, the load gets rebooked. That's not a burden — that's the job. The documentation takes about four minutes. The alternative, if something goes wrong, costs a lot more than four minutes.

Most brokers I know aren't checking for dual authority at all. That's not because they're reckless; it's because the standard workflow doesn't surface it. But the legal exposure from getting it wrong is real, and it's getting more real as the post-Montgomery litigation environment develops. The carriers who know to use their broker authority quietly are the ones who create this exposure. The answer is to make it visible before the load moves, not after it lands in discovery.

— Mason Lavallet

Founder, DOTScreener.com