What must be on a freight bill is not a matter of carrier preference. Under 49 CFR 373.103, a motor carrier’s freight or expense bill must show the names of the consignor and consignee, the shipment date, the origin and destination points, the number of packages, the description of the freight, the weight, volume or measurement, the exact rate or rates assessed, the total charges due with the nature and amount of each charge, the route and each participating carrier, the transfer points, and the address where payment is to be sent.
Call it a dozen fields, depending on whether you count the paired ones separately. Most freight bills that land in an AP inbox are missing at least one, and the missing one is almost always “the nature and amount of each charge.”
That is the practical value of the rule. It converts a vague invoice into a defect list. Instead of writing “we cannot tell what this charge is,” you write “this bill does not state the nature of the $187.50 line item as required by 49 CFR 373.103, please reissue.” Same request, different weight.
The required elements, and what each one is for
Read the list once as a compliance requirement and a second time as an audit tool. Each element exists because someone, decades ago, could not reconcile a bill without it.
| Element required by 373.103 | What it lets you verify | Typical defect |
|---|---|---|
| Names of consignor and consignee | That this bill belongs to your shipment and your entity | Bill-to and consignee conflated on a third-party-billed load |
| Date of the shipment | Which rate, fuel index week, and contract term applied | Only the invoice date printed, not the ship date |
| Origin and destination points | Lane, mileage, and stop count | City pairs without state or ZIP, so mileage cannot be checked |
| Number of packages | Piece count against the BOL | Blank on truckload bills where it still matters for claims |
| Description of the freight | Classification, hazmat, and accessorial reasonableness | “FAK” or “general commodities” with no NMFC item |
| Weight, volume or measurement | Rating basis on weight-rated freight | Billed weight with no scale basis stated |
| Exact rate or rates assessed | Rate con comparison | A total only, with no unit rate to compare |
| Total charges due, with the nature and amount of each charge | Every line item, individually | Lump “accessorials” or an unlabeled code |
| Route and each participating carrier | Interline responsibility and duplicate detection | Single carrier shown on an interlined move |
| Transfer points | Where an interlined shipment changed hands | Omitted entirely |
| Address where payment is to be sent | That you are paying the party entitled to be paid | Remit-to changed mid-relationship with no notice |
Read down the “typical defect” column and you will recognize your own inbox. None of these are exotic. They are what happens when an invoice is generated from a rating engine that was configured for the carrier’s internal purposes rather than for your reconciliation.
The line that does the most work: nature and amount of each charge
If you take one phrase from the rule, take this one. The bill must show the total charges due and the nature and amount of each charge.
That means an invoice reading:
Linehaul 2,150.00
Fuel 312.00
Other 187.50
TOTAL 2,649.50does not satisfy the rule as to that third line. “Other” is not a nature. Neither is “ACC,” “MISC,” “ADDL CHG,” or a bare three-digit code with no legend. You are entitled to know what the charge is, not merely that it exists.
This is the highest-yield audit request in freight AP, and it is not adversarial. Most of the time the carrier’s system knows exactly what the charge is and simply printed a code. Ask for an itemized reissue and you get one, and in the process you find out whether the $187.50 was a legitimate lumper reimbursement or a liftgate on a load that went dock to dock. The full pattern for that second case is in how to dispute a liftgate fee on a dock delivery.
Ask for itemization before you argue the merits. An unlabeled charge cannot be disputed on substance because you do not yet know its substance, and a dispute that guesses wrong gives the carrier an easy rebuttal.
The freight bill versus the bill of lading
These are different documents with different rules, and mixing them up weakens a dispute.
49 CFR 373.101 governs the motor carrier’s receipt or bill of lading. It requires the names of consignor and consignee, origin and destination, number of packages, description of the freight, and weight, volume or measurement where those are relevant to rating. That is the shipment record, created at pickup.
373.103 governs the freight or expense bill, the document that asks for money. It repeats the shipment identifiers and then adds the commercial elements: exact rates, itemized charges, route and participating carriers, transfer points, and remittance address.
The overlap is the point. The five shipment fields appear on both documents, which means the two should agree, and where they do not you have a finding. Billed weight above BOL weight without a reweigh certificate. A consignee on the invoice that never appears on the BOL. A destination that changed without a written reconsignment instruction. This cross-check is the same discipline that catches a carrier invoice that does not match the rate confirmation, just run against a different pair of documents.
The route and participating carrier fields are underrated for a different reason: they are how you catch two carriers billing the same interlined move. Duplicate detection usually keys off amounts and invoice numbers, but interline duplicates hide behind different PRO numbers on the same freight, and the participating-carrier field is what unmasks them. More on the general technique in how to detect duplicate freight invoices.
Who the rule actually applies to
Be careful here, because this is where a defect letter can be wrong on its face.
Part 373 is organized into Subpart A, Motor Carrier Receipts and Bills, sections 373.100 through 373.105, and Subpart B, Freight Forwarders; Bills of Lading, issued under the authority of 49 U.S.C. 13301, 13531 and 14706. 373.103 sits in Subpart A. It is a requirement on motor carriers issuing freight bills.
Three practical consequences.
A broker’s invoice is not a motor carrier freight bill. If you are a shipper paying a broker, the document you receive is a broker invoice, and Subpart A is not written to it. You may well have contractual rights to itemization through your transportation agreement, and you should, but do not cite 373.103 at a broker as though it binds them. If you are a broker paying a carrier, the rule works in your favor on the carrier invoice you receive.
Exempt and contract carriage muddies it. Not every truckload move is a for-hire common carriage shipment subject to the same regime, and much of the market runs on contract terms that supersede default practice. Where you are unsure, argue the contract first and cite the regulation as support, rather than the other way around.
Modes outside motor carriage have their own rules. Ocean demurrage and detention invoicing, for example, is governed by 46 CFR Part 541, which imposes its own content and timing requirements including a 30-day issuance window under 541.7. Do not port 373.103 language into an ocean dispute.
None of this makes the rule weak. It makes it precise, and precision is what gets a defect letter taken seriously by a carrier’s billing supervisor.
The credit terms that also have to be on the bill
373.103 is not the only content requirement. If the carrier extends credit, 49 CFR 377.205 requires that the carrier present its freight bill within 7 days of receiving the shipment on a prepaid move, or within 7 days from delivery on a collect move, and that the bill state the credit time limit, the late-payment penalty, any service or collection charge, and the discount terms.
So a compliant freight bill on a credit shipment carries both sets of content: the shipment and charge elements from 373.103, and the four credit terms from 377.205. A bill that assesses a late fee while stating no credit period or penalty terms has a problem before you even reach the merits of the fee. That whole clock, including the 15-day standard credit period and the 90-day window for revised bills, is worked through in freight bill credit terms under 49 CFR 377.
What the rule does not do
This matters as much as what it does, because the most common mistake in freight disputes is claiming a regulation requires something it does not.
It does not cap any charge. Nothing in 373.103 limits what a carrier may bill for detention, liftgate, or anything else. Rate levels are commercial.
It does not require the carrier to prove a service was performed. The bill must state the nature and amount of the charge. It does not have to attach the evidence. What the carrier must produce to support a charge is a contract question, which is exactly why it is worth writing into the accessorial schedule, as covered in negotiating accessorial charges in a carrier contract.
A defect does not void the charge. An incomplete bill is a reason to demand a corrected bill and a reason to hold payment on the disputed line while you wait. It is not a self-executing waiver of the underlying freight charges. Anyone telling you a missing transfer point means you do not owe the linehaul is selling something.
It does not extend your deadlines. The clocks in 49 U.S.C. 13710, 180 days for a carrier to bill additional charges and 180 days for you to contest a bill, run from receipt of the bill regardless of whether that bill was complete. Do not sit on a defective invoice waiting for a better one. Contest it in writing, then wait. The rest of the timers are collected in the freight billing deadlines reference.
Turning the rule into a standing AP check
The point of an enumerated legal minimum is that it can be automated, or at least routinized. Run every incoming carrier invoice against this before it reaches the approval queue.
- Identity. Consignor and consignee named, and matching the BOL.
- Date. Ship date present, not just invoice date. Without it you cannot verify the fuel index week or the contract term in force.
- Shipment facts. Origin and destination with enough specificity to compute mileage. Package count. Freight description. Weight or volume where it rates the shipment.
- Rates. The exact rate assessed, not only an extended total. If a per-mile or per-hundredweight rate is not printed, you cannot check it without recomputing backward.
- Itemization. Every charge separately stated with its nature. Flag any line whose description is a bare code, “other,” or “miscellaneous.”
- Interline fields. Route, each participating carrier, and transfer points on any move that was not single-line.
- Remit-to. Payment address present, and matching the remit-to on file. A changed remittance address that arrives on an invoice rather than through your vendor-maintenance process is a fraud check, not just a compliance one.
- Credit terms. On credit shipments, the credit time limit, late-payment penalty, collection or service charge, and discount terms, per 377.205.
Anything failing steps 4, 5 or 7 should not be approved. Send a short request for a corrected bill, name the element and the section, release the undisputed balance, and log the date you contested.
The defect letter
Keep it short. You are asking for a document, not making an argument.
Subject: Invoice 48213 - request for corrected freight bill (49 CFR 373.103)
Hello,
Invoice 48213 (PRO 1234567, BOL 88214, delivered 09/02/2026) is not in a
form we can process.
The bill states a total of $2,649.50 including a line of $187.50 described
only as "OTHER." Under 49 CFR 373.103, a freight or expense bill must state
the total charges due together with the nature and amount of each charge.
The bill also omits the shipment date and the transfer point for the
interline segment.
Please reissue a corrected bill showing the nature of the $187.50 charge,
the shipment date, and the interline routing.
We are releasing the undisputed $2,462.00 for payment today and will
process the balance on receipt of the corrected bill. Please treat this
email as our written contest of this bill.
Thank you,
[Name]
[Company] | [Phone] | [Email]Releasing the undisputed balance is what keeps this from becoming a collections conversation. You are not withholding payment. You are withholding payment on the one line nobody can currently identify, which is a position no reasonable billing department argues with for long.
Sources
- 49 CFR 373.103, Freight or expense bills (Cornell LII)
- 49 CFR 373.101, Motor carrier receipts and bills of lading (Cornell LII)
- 49 CFR Part 373, structure and authority (Cornell LII)
- 49 CFR 377.205, presentation of freight bills and required credit terms (Cornell LII)
- 49 U.S.C. 13710, billing and contesting windows (Cornell LII)
- 46 CFR Part 541, ocean demurrage and detention billing requirements (Cornell LII)
- 46 CFR 541.7, 30-day invoice issuance window (Cornell LII)