Trucking Industry Terms, Explained Plainly
The pay, fee, compliance and operations words owner-operators run into most.
Plain-language definitions of the pay, fee, compliance, and operations terms that owner-operators, company drivers, and small fleets run into most. They include deadhead, detention, TONU, RPM, CSA scores, and more. Each comes with the detail behind the definition, not just a one-line answer.
Terms last reviewed September 23, 2026
Pay & Rates
How loads, miles, and downtime actually turn into money.
Detention Pay (Detention Time)Detention pay pays a driver for waiting too long at a shipper or receiver. It starts after an agreed free time (commonly 2 hours) to get loaded or unloaded. No federal law requires detention pay or sets a rate. It exists only because it's written into the rate confirmation or broker/carrier contract. That is exactly why getting the terms in writing before the load matters.Read definition TONU (Truck Order Not Used)TONU (Truck Order Not Used) is a fee a carrier can charge when a booked load is canceled after the truck was dispatched or arrived. It pays for the lost time and the other freight you turned down to hold that load. It is a contract term, so it is owed only when your rate confirmation or carrier agreement provides for it. One industry guide puts the usual range at about $200 to $600.Read definition Layover PayLayover pay pays a driver for a full day or more lost to a delay that is not the driver's fault, such as a pickup or delivery pushed to the next day. It is usually a flat daily fee, not an hourly one like detention. It is a contract term, so it is owed only when your rate confirmation or carrier agreement provides for it. One industry guide lists layover at about $250 to $500.Read definition RPM (Rate Per Mile)RPM (rate per mile) is a load's pay divided by the miles driven to earn it, and it is the most common number used to compare freight. Loaded RPM counts only loaded miles. All-in RPM counts empty miles too, so it shows what the truck really earned. To make money, your all-in RPM must beat your cost per mile. ATRI puts the industry-average cost at $2.336 a mile for 2025.Read definition Per DiemFor travel on or after October 1, 2026, the IRS per diem rate for truckers is $80 a day in the lower 48 states and $86 a day outside them. Per diem is a daily allowance for meals when you are away from home for work. Owner-operators can deduct 80% of the rate. Company drivers usually cannot deduct it on their own return. They only get it if the carrier pays it tax-free.Read definition Rate Confirmation (Rate Con) (Rate Con)A rate confirmation (rate con) is the written deal for one load. It is the contract between the carrier and the broker. It sets the pay, the pickup and delivery details and the terms. Once you sign it, you accept all of it, so read it before you dispatch the truck.Read definition Linehaul (Line Haul)Linehaul is the base price for moving a load from pickup to delivery. It is usually quoted in dollars per mile or as a flat amount. It does not include the fuel surcharge or extra fees such as detention and lumper charges.Read definition
Fees & Charges
The line-item costs and add-on fees that show up on top of the linehaul rate.
Lumper FeeA lumper fee is what a shipper, warehouse or receiver charges for a third-party crew (a "lumper") that loads or unloads your freight by hand. The driver usually pays it at the dock, and the carrier or broker pays it back. Federal law (49 U.S.C. §14103) says a shipper or receiver that requires help unloading must provide it or pay the owner-operator's cost of it. Keep the receipt, because it is what gets you reimbursed.Read definition Accessorial Charges (Accessorials)Accessorial charges are fees for freight services beyond the basic pickup and delivery, such as detention, layover, TONU, lumper fees and extra stops. They are billed on top of the linehaul rate. They are owed only when your rate confirmation or carrier agreement provides for them. One industry guide lists most of them between about $50 and $600.Read definition Fuel Surcharge (FSC) (FSC)A fuel surcharge (FSC) is an extra charge added to the base rate when diesel costs more than a set price. It helps cover fuel costs that go up and down. Most truckload surcharges are a cents-per-mile amount that comes from a formula in the contract.Read definition
Operations
How freight actually moves between pickup and delivery.
Deadhead (Deadhead Miles)Deadhead miles are the miles a truck drives empty, with no paying freight on board, most often between one load and the next. They cost fuel, time and wear, but earn nothing. Driving empty also uses your driving hours. ATRI's 2026 report says deadhead mileage stayed elevated in 2025. Count deadhead miles when you figure what a load really pays.Read definition Drop and HookDrop and hook means a driver leaves one trailer at a facility and hooks onto another that is already loaded or empty. It usually means far less time at the dock than a live load or unload. Less waiting means fewer unpaid hours, less detention risk and more hours left to drive. But it needs a trailer pool, so not every facility offers it.Read definition BackhaulA backhaul is a load on the return leg of a trip, so the truck does not run that leg empty. It turns deadhead miles into paid miles and keeps your all-in rate per mile up across the whole round trip. A strong outbound rate with no backhaul can still be a poor trip. So price the round trip, not one leg.Read definition Bill of Lading (BOL) (BOL)A bill of lading (BOL) is the paper that shows what freight a driver picked up. It is a receipt for the load. It also holds the shipping terms. Federal rules say for-hire carriers must issue one with the shipper and receiver names, the pickup and delivery points, the package count, a description of the freight and the weight when it sets the rate.Read definition Dwell Time (Truck Dwell Time)Dwell time is the total time a truck spends at one facility. It starts when the truck arrives and ends when it leaves. It includes waiting, loading or unloading and paperwork. Detention is the part that runs past the free time in your contract.Read definition Load Board (Load Boards)A load board is a website or app where shippers and brokers post freight and carriers search for loads. Owner-operators use load boards to find freight, check what a lane pays and compare rates. Some boards are free and some charge a monthly fee.Read definition
Business & Finance
The business side of running a truck as a company, not just driving it.
Freight Factoring (Invoice Factoring)Freight factoring is selling an unpaid freight invoice to a factoring company for most of its value now, instead of waiting to be paid. The factoring company collects the invoice from the broker or shipper and keeps a fee. Advance rates are often 90% to 97%, but each company sets its own fees. Because Article 9 of the Uniform Commercial Code covers the sale of invoices, a factor usually files a public claim on them and tells your broker to pay the factor.Read definition Owner-OperatorAn owner-operator is a driver who owns or finances their own truck and runs it as an independent business. They run under their own FMCSA operating authority or leased onto a carrier's authority. A leased owner-operator is covered by federal lease rules. The lease must be in writing, and the carrier must pay within 15 days after you turn in the delivery papers (49 CFR §376.12). You pay your own costs, so know your cost per mile.Read definition Freight BrokerA freight broker is a company that sells or arranges truck transportation but does not haul the freight itself. Federal law (49 U.S.C. §13102) defines a broker this way. A broker needs its own FMCSA registration and a $75,000 surety bond or trust fund. It earns the margin between what the shipper pays and what the carrier is paid. You have a legal right to review the broker's record of your load.Read definition Quick Pay (QuickPay)Quick pay is a broker's early-payment program: you pay a fee, a percent of the invoice, to get paid in days instead of the broker's standard terms. Not every broker offers it, and each sets its own fee. RXO, for example, lists no fee at 30 days, 2.5% for same-day QuickPay by ACH, and 4% for Advance Pay within an hour.Read definition
Equipment Types
Trailer and truck types have their own full dispatch guides rather than a short glossary entry. Each covers rates, freight fit, and getting started in that equipment.
Dry VanFully enclosed trailer for general, palletized freight.Full guide ReeferRefrigerated trailer for temperature-controlled freight.Full guide FlatbedOpen trailer for oversize, machinery, or construction freight.Full guide Box TruckSmaller straight truck for local and regional deliveries.Full guide HotshotMedium-duty truck and trailer for expedited, smaller loads.Full guide Power OnlyTractor-only service pulling a shipper- or broker-owned trailer.Full guide
Looking for the actual federal rule, not just the term? See the FMCSA & DOT regulations reference for the full requirements and CFR citations behind terms like CSA score, MC number, and UCR.
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Put these terms to work
Free tools that turn the definitions above into real numbers for your own truck.
- Revenue Per Mile TrackerTrack your real all-in rate per mile, loaded and empty combined.
- Deadhead Miles CalculatorSee what deadhead is actually costing you on a load.
- Cost Per Mile CalculatorKnow your true operating cost before you compare a rate against it.
- New Authority ChecklistGet your MC number, BOC-3, and UCR filings in order in one place.