The short version
A carrier packet is seven documents: the signed carrier agreement, a W-9, a certificate of insurance from the insurer rather than the carrier, proof of authority, banking details, a notice of assignment if they factor, and a signed W-9-matched remittance instruction. Two of those exist purely to stop you paying the wrong party, and that is the failure that costs a brokerage twice for one load.
A carrier packet is not admin. It is the record that decides who you owe, what they agreed to, and whether you can defend a decision six months from now when somebody else invoices you for the same load.
What goes in a carrier packet?
Seven items. A signed broker-carrier agreement, a W-9, a certificate of insurance obtained from the insurer, evidence you verified their authority yourself, remittance details, a notice of assignment where they factor, and a contact record. Anything beyond that is preference; anything short of it is a gap you will find at the worst moment.
| Document | What it protects you from |
|---|---|
| Signed broker-carrier agreement | Ambiguity about re-brokering, insurance, tracking, claims handling and who may be paid. It is the only place those terms exist. |
| W-9 | A year-end reporting problem, and a mismatch between the legal name you pay and the entity you contracted with. |
| Certificate of insurance, from the agent | A forged certificate. Request it from the insurer named on the FMCSA filing and list your brokerage as certificate holder so cancellation reaches you. |
| Your own authority check | A screenshot that proves nothing. Look the USDOT number up yourself and note the date you did it. |
| Remittance details | Paying an account that was substituted after setup. Any later change gets verified by phone on the number in the public record. |
| Notice of assignment | Paying the carrier when their factor owns the invoice, which means paying it again to the factor. |
| Contact record | A carrier you cannot reach at 2am at a closed receiver. A name, a mobile, and who answers out of hours. |
The notice of assignment, and why it is not optional
When a carrier factors their invoices, the factoring company owns the receivable and sends you a notice of assignment saying so. Pay the carrier direct after that notice and the factor can still come to you for the money, because the debt was never the carrier’s to collect.
That is the mechanism behind most "we paid twice" stories in brokerage. It is entirely avoidable: file the notice with the packet, mark the carrier record, and treat a request to pay somebody else as a change that has to be verified rather than a preference to be accommodated.
Verify any such change by calling the number on the FMCSA record, never by replying to the email that asked. The rest of the identity checks are in how to vet a carrier.
The clauses in your agreement that earn their place
- No re-brokering without written consent. Explicit, with a stated consequence. Without it, the carrier who quietly hands your load to somebody else has broken nothing you can point at.
- Payment goes only to the named entity or its factor of record. This is the clause that turns a payment-detail change into a contractual event rather than an email.
- Notification of any change to insurance or authority status. Onboarding is a snapshot; this is what makes it an obligation to keep it true.
- Consent to tracking, and how it will be provided. Agree the method up front so it is not a negotiation at pickup.
- Claims handling and notice periods. Who is told what, within how long, and what documentation travels with a claim.
Setup should take minutes, not a day
Every hour of setup friction is an hour in which the carrier books somebody else’s load. Send the whole packet in one message rather than three, accept electronic signature, and do the authority and insurance checks while they are completing it rather than after.
- Have the packet ready to send before you post the load, not after a carrier calls.
- Ask only for what you will actually read. A twelve-page questionnaire selects for carriers with a back office, not for good ones.
- Confirm what you are paying and when, in the same message. It is the question they are about to ask.
- Store it where dispatch can see it, so nobody tenders a load to a carrier whose certificate expired last week.
Keeping the packet current
Authority lapses, insurance cancels and safety scores move. Re-check anyone you have not tendered to in a few months, and build the process so a carrier with an expired certificate cannot be dispatched at all. A packet completed once and never revisited is a record of what was true the day it was signed.
The bottom lineSeven documents, two of which exist only to stop you paying the wrong party. Collect them before the load, keep them current after it, and treat any change of payment details as something to verify rather than something to update.
Frequently asked questions
What documents should a carrier packet include?
A signed broker-carrier agreement, a W-9, a certificate of insurance obtained from the insurer rather than the carrier, your own record of the authority check, remittance details, a notice of assignment if the carrier factors, and a contact record with an out-of-hours number.
Why should the certificate of insurance come from the agent?
Because certificates are trivially edited and a forged one is a standard part of carrier identity theft. Requesting it from the insurer named on the FMCSA filing confirms it is real, and asking to be listed as certificate holder means you are told if the policy is cancelled.
What is a notice of assignment?
A notice from a factoring company telling you it has bought the carrier’s invoices, so payment for that carrier’s loads is owed to the factor. Paying the carrier direct after receiving one usually means paying again to the factor, because the debt was never the carrier’s to collect.
How often should a carrier packet be refreshed?
Insurance and authority both change without anybody telling you, so re-check carriers you have not tendered to in a few months and build dispatch so a load cannot go to a carrier with an expired certificate. A packet signed once is a record of one day, not a standing guarantee.
What clause matters most in a broker-carrier agreement?
An explicit prohibition on re-brokering or subcontracting without written consent, with a stated consequence. Close behind it is a clause stating that payment goes only to the named entity or its factor of record, which is what turns a change of banking details into a contractual event.
Sources
Every figure in this article is linked in place. The full list, for anyone who wants to check the working.
- eCFR, 49 CFR Part 371. Broker record-keeping obligations for each transaction.
- FMCSA SAFER. Where authority and the insurer on file are verified.
