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Glossary

Trucking and dispatch terms, in plain English

The words brokers, shippers and dispatchers use every day, each explained in a sentence or three. Where there is more to know, it links to the guide or calculator that goes deeper.

By Aditya Jain, Aditya EnterprisesUpdated October 21, 2026General guidance, not legal or tax advice

Loads and pay

What a load pays, and the time and miles that eat into it.

Deadhead

Miles a truck drives empty, to reach a pickup or to get home after a delivery. Nobody pays for them, so the loaded miles have to cover them.

Also called: Empty miles

Go deeper: Deadhead cost calculator

Detention

Pay for the time a truck is held at a shipper or receiver past the free time agreed for the load. It gets paid when the terms are on the rate confirmation and the arrival and departure times are on record.

Also called: Detention pay

Go deeper: How to actually collect detention

Layover

Pay for a truck that has to wait overnight or longer because a load cannot be picked up or delivered on the planned day. Like detention, the terms belong on the rate confirmation before the truck rolls.

Also called: Layover pay

Go deeper: How to actually collect detention

TONU (truck order not used)

A payment to the carrier when a load is canceled after the truck was sent for it or has already arrived. Whether it is paid, and how much, depends on what the rate confirmation says.

Go deeper: How to vet a freight broker

Lumper

A worker or service paid to load or unload freight at a warehouse. Agree in writing who pays it and keep the receipt, because a carrier that pays at the dock needs it to be paid back.

Also called: Lumper fee

Go deeper: How to vet a freight broker

Rate per mile

What a load pays divided by its miles. Count the empty miles to reach it too, then compare the result with your own cost per mile, not with what other loads pay.

Also called: RPM, All-in rate per mile

Go deeper: Is this load worth it? calculator

Cost per mile

What it costs to run your truck for one mile, fixed costs and running costs together. It is the floor under every load you take.

Also called: CPM

Go deeper: Cost per mile calculator

Spot and contract freight

Spot loads are priced and booked one at a time, often through a load board. Contract freight runs on a rate agreed for a lane over a period, usually with a shipper or a broker's regular customer.

Also called: Spot rate, Contract rate

Go deeper: Finding your first loads on a new authority

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Paperwork

The documents that book a load, move it and get it paid.

Rate confirmation

The broker's written agreement for one load: the rate, stops, times and the terms for detention, TONU, lumpers and payment. Read it before you sign, because a charge that is not on it is hard to collect.

Also called: Load confirmation

Go deeper: How to vet a freight broker

Bill of lading (BOL)

The shipping document handed over at pickup that lists the freight, the shipper and where it is going. It is signed at pickup and again at delivery, and in and out times written on it back up a detention claim.

Also called: BOL document

Go deeper: How to actually collect detention

Carrier packet

The documents a broker asks for before it books a carrier the first time: authority details, a certificate of insurance, a W-9, payment details and a signed agreement. Having it ready speeds up the first load with every new broker.

Also called: Carrier setup packet

Go deeper: Finding your first loads on a new authority

Factoring

Selling your load invoices to a factoring company, which pays you most of their value soon after delivery and collects from the broker, for a fee. Read the contract for recourse, minimums and how you can leave it.

Also called: Freight factoring

Go deeper: Trucking, logistics and the supply chain

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Authority and compliance

The numbers, filings and rules a carrier keeps current, each explained in plain words.

USDOT number

The number FMCSA gives a motor carrier when it registers, which identifies the company's safety record and filings. Who must register depends on the vehicles and the kind of operation, so check the rule.

Go deeper: How to set up your trucking company

MC number

The docket number that comes with operating authority from FMCSA, which for-hire carriers moving regulated freight across state lines generally need on top of a USDOT number.

Also called: Operating authority, MC authority

Go deeper: How to set up your trucking company

ELD (electronic logging device)

The device that records a driver's duty status for hours of service. Carriers whose drivers must log their hours generally have to use one, with the exceptions set out in the rule.

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Brokers and fraud

Who you haul for, and the checks that keep you paid.

Freight broker

A company licensed by FMCSA that arranges, for pay, for an authorized carrier to move a shipper's freight, without hauling it itself. Its authority and its bond can be checked in FMCSA's own records before you haul.

Also called: Property broker

Go deeper: How to vet a freight broker

BMC-84 bond

The surety bond a broker files with FMCSA as its financial security; a trust fund filed on Form BMC-85 is the other way to meet the rule. FMCSA will not register a broker without one, so check that it is on file before you haul.

Also called: BMC-85, Broker bond

Go deeper: How to vet a freight broker

Double brokering

When the company that took a load passes it on to another carrier without the shipper or broker agreeing, often leaving the carrier that hauled it unpaid. Checking who you are really dealing with on every load is the main defense.

Also called: Double-brokered load

Go deeper: My load was stolen: what do I tell the broker?

Broker credit

How reliably and how quickly a broker pays its carriers. Check it before you book, in a broker credit tool or by asking your factoring company whether it will buy that broker's invoices.

Also called: Days to pay

Go deeper: How to vet a freight broker

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Equipment

The trailers and the ways freight gets on and off them.

Dry van

An enclosed trailer without temperature control, for freight that only needs to stay dry and secure.

Also called: Van trailer

Go deeper: Dispatch by equipment

Reefer

A refrigerated trailer with its own cooling unit, for food and other freight that must stay at a set temperature. The temperature setting and how it is recorded belong on the rate confirmation.

Also called: Refrigerated trailer

Go deeper: Dispatch by equipment

Power-only

A load where the carrier supplies the truck and driver and pulls a trailer that belongs to someone else, such as the shipper or the broker.

Also called: Power only

Go deeper: Dispatch by equipment

Drop and hook

Pickup or delivery where the driver leaves one trailer and hooks up another that is already waiting, instead of waiting at the dock to be loaded or unloaded.

Also called: Drop trailer

Go deeper: How to actually collect detention

Live load

Pickup where the truck waits at the dock while the freight is loaded; at delivery it is a live unload. The waiting is where detention terms matter.

Also called: Live unload

Go deeper: Detention claim email builder

Back to A to Z

Learn dispatching

Learn truck dispatching, step by step: what to learn, practice tasks, and the honest comparison with hiring someone.

Learn dispatching
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