Trucking Terms Guide

Insurance / Documents

What does COI mean in trucking?

Short answer: Certificate of insurance, a document showing coverage summary details.

Plain-English explanation

COI (Certificate of Insurance) is a one-page summary document issued by an insurance agent that outlines the key coverage details of a commercial policy -- insured party, insurance company, policy types, coverage limits, effective and expiration dates, certificate holder, and any additional insured or loss payee designations. It is the standard proof-of-insurance document used in business-to-business verification. A COI is a summary, not the policy itself. It summarizes what the policy covers but does not convey policy language, exclusions, endorsements, or the full terms. A certificate holder who receives a COI has documentation of coverage but does not have the same information as someone who reads the actual policy. In trucking carrier setup, COIs are required by brokers as part of the carrier packet. The broker needs to verify: - The carrier has active primary auto liability coverage at or above the minimum required ($750,000 for general freight) - The carrier has active motor truck cargo coverage at or above the minimum required (often $100,000) - The broker is named as certificate holder (receives notices of cancellation) - The broker is named as additional insured and loss payee if their requirements specify it COIs expire when the underlying policy expires. Carriers whose policies renew must obtain updated COIs from their insurance agent and resubmit them to active certificate holders. Many brokers now use automated verification systems (RMIS, MyCarrierPortal, Highway) that connect directly to insurance companies and check policy status in real time rather than relying on COI documents alone.

Insurance terms should be matched to the policy, endorsement, certificate, limit, and exclusion language. A short definition cannot confirm coverage for a specific loss or load.

Why it matters in trucking

The COI is the primary compliance document that keeps carriers active with brokers. An expired COI or a COI with insufficient coverage limits can put a carrier on hold with a broker until the issue is resolved. Getting the COI right -- correct coverage amounts, correct broker named as certificate holder, correct additional insured language -- prevents setup delays and keeps the carrier active.

Coverage questions are easier before dispatch than after a claim. If the load, trailer, cargo value, or operating status is unusual, clarify the wording early.

Example in real use

A carrier sets up with a new broker. The broker's setup requirements include: primary auto liability of $1M, cargo of $100K, broker named as certificate holder AND additional insured and loss payee on cargo. The carrier's insurance agent issues a COI that names the broker as certificate holder and additional insured on liability but not as loss payee on cargo. The broker flags the gap -- the COI needs a corrected version showing the broker as loss payee on the cargo policy. The insurance agent issues a corrected COI within hours. Setup is completed.

Common mistakes or confusion

  • Sending a generic COI without the specific broker named in the certificate holder and additional insured fields -- each broker needs their own specifically named COI.
  • Not requesting a new COI after the policy renews -- a COI with last year's policy dates is technically expired; brokers who verify dates will put the carrier on hold.
  • Confusing a COI with proof of insurance for claims purposes -- a COI is a summary document for setup verification; an actual certificate of coverage and policy documents are needed when a claim is filed.

Related terms

Certificate of Insurance A document summarizing insurance coverage for a broker, shipper, or customer. Loss Run A report showing a business's insurance claims history for a period. Additional Insured A party added to a policy for limited coverage rights under policy terms. Certificate Holder A party listed to receive proof of insurance or notices as described on the certificate. Primary Liability Liability coverage for bodily injury or property damage caused by the truck in covered operations. Physical Damage Coverage for damage to the insured truck or trailer itself, subject to policy terms.

Commonly confused with

Certificate of Insurance A document summarizing insurance coverage for a broker, shipper, or customer.

Related guides

Truck Insurance Terms is the best next place to keep learning this topic.

Sources and last updated

Insurance definitions are reviewed against FMCSA minimum coverage requirements and NAIC consumer insurance glossary. Coverage details should be confirmed against the actual policy. See the sources page.

Last updated: 2026-05-08