FMCSA insurance filing process showing BMC-91 and BMC-34 proof of insurance

FMCSA Insurance Filings Explained: BMC-91, BMC-34, and What Carriers Must File

Share this article

Disclosure: Informational only. We are not FMCSA or USDOT. Always verify your status directly through official FMCSA systems.

FMCSA insurance filings are one of the most misunderstood areas of DOT compliance, yet they directly control whether a motor carrier can legally operate. Many carriers believe that purchasing an insurance policy automatically makes them compliant, but FMCSA does not rely on policy paperwork held by the carrier. 

Instead, it relies on official electronic insurance filings submitted through approved systems. These filings act as proof that a carrier meets federal financial responsibility requirements tied to operating authority. When filings are missing, incorrect, or withdrawn, FMCSA enforcement systems can suspend authority without warning. 

Understanding how FMCSA insurance filings work, what forms apply to your operation, and who is responsible for submitting them is critical for avoiding authority interruptions and enforcement action.

What Are FMCSA Insurance Filings?

FMCSA insurance filings are electronic confirmations of insurance coverage that verify a carrier meets minimum financial responsibility standards required to hold operating authority. These filings are submitted directly to FMCSA by an approved insurance provider, not by the carrier itself.

FMCSA uses insurance filings to confirm that a motor carrier:

  • Has active coverage that meets federal minimums
  • Maintains continuous compliance while authority is active
  • Is financially responsible to operate in interstate commerce

Unlike traditional insurance documents, FMCSA insurance filings are monitored continuously. If a filing expires, is canceled, or is withdrawn, FMCSA systems automatically flag the carrier as non-compliant. This process is administrative but has immediate operational consequences.

Insurance filings are directly tied to operating authority status, which is why carriers often lose authority even though they believe they are insured. FMCSA does not evaluate intent or payment history. It evaluates whether valid insurance proof exists in its system.

For carriers learning compliance fundamentals, this topic connects closely with operating authority types and DOT insurance requirements, both of which explain why filings exist in the first place and how FMCSA enforces them.

Why FMCSA Insurance Filings Exist

FMCSA insurance filings exist to protect the public and ensure that motor carriers have verifiable financial responsibility before operating in interstate commerce.

From a regulatory standpoint, filings allow FMCSA to:

  • Validate insurance coverage in real time
  • Suspend authority quickly when coverage lapses
  • Enforce accountability across thousands of carriers

From a business standpoint, filings:

  • Prevent uninsured operations
  • Reduce liability exposure
  • Serve as a gatekeeper for market participation

Insurance filings are not optional documentation. They are a regulatory control mechanism embedded into the FMCSA authority system.

Who FMCSA Insurance Filings Apply To

FMCSA insurance filing requirements apply to:

  • For-hire motor carriers
  • Passenger carriers
  • Household goods movers
  • Freight brokers and freight forwarders

Any entity applying for or holding FMCSA operating authority must have the correct insurance filing on record before authority is activated and throughout operations.

This applies equally to:

  • Single-truck owner-operators
  • Small fleets
  • Large multi-state carriers

Fleet size does not change filing obligations.

Regulatory Context and Operating Authority Impact

FMCSA insurance filings are tied directly to operating authority status under federal regulations, including 49 CFR Part 387.

FMCSA systems automatically:

  • Activate authority when valid filings are received
  • Suspend authority when filings lapse or are withdrawn
  • Publicly display insurance status for brokers and enforcement agencies

A lapse in filing is treated as a compliance failure, not an administrative delay. This is why many carriers experience authority suspension without warning.

Insurance filings are one of the fastest ways a carrier can lose the ability to operate legally.

Difference Between BMC-91 and BMC-34

FMCSA requires different insurance filings depending on the type of operating authority a carrier holds. Two of the most common filings are BMC-91 and BMC-34, and misunderstanding the difference between them is a frequent cause of authority suspension.

These filings do not replace each other. Each serves a separate regulatory purpose and may be required simultaneously depending on the carrier’s operations.

What Is BMC-91 Filing

BMC-91 is the FMCSA insurance filing used to prove public liability insurance. This filing confirms that a motor carrier maintains coverage for bodily injury and property damage caused to third parties during commercial operations.

BMC-91 is required for:

  • For-hire motor carriers
  • Passenger carriers
  • Household goods carriers

Without an active BMC-91 filing on record, FMCSA will not activate operating authority and will suspend authority if the filing is withdrawn or lapses. Even short gaps can trigger enforcement action.

What Is BMC-34 Form

BMC-34 is the insurance filing used to prove cargo insurance. It applies primarily to household goods carriers that are required to maintain cargo coverage under FMCSA regulations.

BMC-34:

  • Does not replace BMC-91
  • Applies only when cargo insurance is required
  • Must remain active for authority to stay valid

Many carriers mistakenly believe cargo insurance is optional. For household goods operations, a missing BMC-34 can result in authority suspension even if public liability coverage is active.

Who Files BMC-91 and BMC-34?

One of the most common misunderstandings is who is responsible for filing these forms.

Insurance Provider Responsibility

  • BMC-91 and BMC-34 are filed electronically by the insurance provider
  • Carriers cannot submit these filings themselves
  • FMCSA only recognizes filings sent directly by authorized insurers

Carrier Responsibility

While carriers do not submit the filings, they are responsible for:

  • Selecting the correct coverage
  • Ensuring the insurer submits the correct filing
  • Monitoring FMCSA records for active status

FMCSA places the compliance burden on the carrier, even if the insurer makes the mistake.

Common FMCSA Insurance Filing Mistakes

FMCSA insurance filing issues are among the most common administrative violations affecting operating authority. These mistakes often occur quietly and are usually discovered only after enforcement action has already begun.

Frequent Errors

  • Assuming insurance payment equals FMCSA filing
  • Insurance provider submitting the wrong filing type
  • Filing withdrawn during policy renewal or rewrite
  • Coverage not aligned with authority classification
  • Failure to monitor FMCSA insurance status

Real-World Fleet Impact

In real fleet operations, these mistakes can lead to:

  • Immediate operating authority suspension
  • Broker load cancellations
  • Contract termination
  • Increased audit and compliance review risk

FMCSA places the compliance burden on the carrier, even when the insurance provider causes the error. Carriers are expected to actively monitor their filing status at all times.

What Happens If FMCSA Insurance Filings Lapse?

When an FMCSA insurance filing lapses, FMCSA may:

  • Suspend operating authority
  • Issue public compliance flags
  • Require reinstatement filings and fees

If the lapse continues:

  • Authority may be revoked
  • New authority applications may be required
  • Additional scrutiny may follow

FMCSA systems do not treat insurance lapses as administrative delays. A lapse is treated as a compliance failure and enforcement action is automated. Many carriers lose authority without direct notice, discovering the issue only after being unable to book loads or pass roadside inspections.

Compliance Best Practices for Insurance Filings

Monitor FMCSA Records Regularly

Do not rely solely on your insurance provider. Carriers should routinely check:

  • FMCSA insurance filing status
  • Operating authority records

Align Filings With Authority Type

Ensure filings match:

  • Carrier operations
  • Commodity classifications
  • Authority scope

Plan Ahead for Policy Changes

Policy renewals and insurer changes are common points of failure. Planning prevents:

  • Filing gaps
  • Authority interruption

Insurance filings are an administrative task, but the risk of failure is operational and financial.

Audit and Risk Impact of Filing Non-Compliance

Insurance filing issues increase exposure to:

  • FMCSA audits
  • Compliance reviews
  • Authority investigations

During audits, filing lapses often lead to:

  • Expanded record requests
  • Deeper financial scrutiny
  • Higher enforcement pressure

FMCSA treats insurance filing compliance as a baseline indicator of carrier responsibility.

FAQs

What is an FMCSA insurance filing?

An FMCSA insurance filing is electronic proof submitted by an insurance provider to confirm that a motor carrier meets federal insurance requirements for operating authority.

What is the difference between BMC-91 and BMC-34?

BMC-91 proves public liability insurance for motor carriers, while BMC-34 proves cargo insurance and is mainly required for household goods carriers.

Who files BMC-91 and BMC-34 forms?

These forms are filed electronically by the insurance provider, not the carrier. However, carriers are responsible for ensuring the filings remain active and accurate.

Can my operating authority be suspended if a filing lapses?

Yes. If an FMCSA insurance filing lapses, FMCSA may immediately suspend operating authority until valid proof is restored.

Does paying insurance premiums guarantee FMCSA compliance?

No. Paying premiums does not guarantee compliance. FMCSA only recognizes active insurance filings submitted directly by the insurer.

How can carriers check their insurance filing status?

Carriers can check their FMCSA records online or work with a compliance service to monitor insurance filings and authority status.

Table of Contents

Start Staying DOT Compliant Today

DOT Compliance Portal

Related Articles