FMCSA Insurance Requirements for Trucking Companies: Limits, Filings & MCS-90

FMCSA insurance requirements are really financial-responsibility requirements. They establish the minimum amount of public liability a regulated motor carrier must demonstrate and the filing used to show FMCSA that the requirement has been met. They do not tell you every coverage a trucking company should buy.

If you're starting a new authority, see my New Authority Truck Insurance guide for the insurance side of getting the authority ready to operate.

Prefer to watch? Here's my quick video on the $750,000 federal minimum versus the $1 million most brokers and shippers expect:

How Much Liability Insurance Does FMCSA Require?

For many for-hire interstate property carriers, the federal minimum depends on the vehicle and commodity. Non-hazardous property carriers operating vehicles with a GVWR of 10,001 pounds or more generally have a $750,000 public-liability minimum. Certain hazardous-material operations can require $1 million or $5 million.

You can review FMCSA's current limits on the official FMCSA insurance filing requirements page.

The federal minimum and the amount a trucking company actually carries are not always the same. Many brokers, shippers, customers, and contracts expect $1 million in auto liability even when the federal minimum is lower. Learn more about the coverage itself on my Primary Auto Liability Insurance page.

What Are the BMC-91 and BMC-91X Filings?

The BMC-91 and BMC-91X are filings used by an insurance company to show FMCSA that a motor carrier has the required public-liability financial responsibility. The insurance company makes the filing electronically; a Certificate of Insurance is not the same thing as the federal filing.

That distinction matters when you're activating a new trucking authority or changing insurance companies at renewal. Binding a policy and having an insurance ID card or certificate does not by itself mean the federal filing has posted correctly.

I break down each filing, including the MCS-90, in BMC-91 vs BMC-91X vs MCS-90: What Your Trucking Insurance Filings Actually Mean.

What Is the MCS-90 Endorsement?

The MCS-90 is an endorsement attached to a motor carrier's liability policy to satisfy the federal financial-responsibility requirements. It is designed to protect the public; it is not a substitute for properly writing the trucking policy.

This is the part that is often misunderstood. The MCS-90 says that, within the limit stated in the endorsement, the insurance company agrees to pay a final judgment against the insured for covered public liability resulting from negligence involving motor vehicles subject to the federal financial-responsibility requirements, even if a vehicle was not specifically described on the policy or a policy condition, limitation, or violation would otherwise relieve the insurer from paying that judgment.

In practical terms, the endorsement can require the insurance company to pay an injured member of the public even when the underlying policy, by itself, would not have obligated the company to make that payment.

But that does not mean the policy suddenly provides normal insurance coverage for every truck, driver, or situation. The MCS-90 specifically preserves the policy's terms, conditions, and limitations between the insurance company and the insured. If the insurer pays a claim only because of the MCS-90, the endorsement says the insured must reimburse the insurance company for a payment the company would not otherwise have been required to make under the policy.

That is why I would never look at an MCS-90 as a way to fix an improperly scheduled truck, undisclosed driver, excluded operation, or other policy problem. The policy still needs to be written correctly. The MCS-90 is a federal public-protection mechanism, not a replacement for proper underwriting and coverage.

There are also limits to what the endorsement does. The MCS-90 concerns public liability—bodily injury, property damage, and environmental restoration as defined by the endorsement. It does not turn into motor truck cargo insurance for freight being hauled, and the form excludes injury to the insured's employees while they are working.

Certificate of Insurance vs. FMCSA Filing

A certificate of insurance is evidence of coverage that you may provide to a broker, shipper, customer, lender, or other party. The FMCSA filing is the insurer's electronic proof to the federal government that the required financial responsibility is in place. They serve different purposes.

FMCSA Minimums Do Not Tell You Everything You Need to Insure

FMCSA's financial-responsibility rules answer a regulatory question. They do not tell you every coverage your business should buy or every requirement a broker, shipper, lender, lease, or contract may impose.

Depending on the operation, you may also need motor truck cargo insurance, physical damage insurance, truckers general liability, trailer interchange or non-owned trailer coverage, or other coverage. Underwriters will also evaluate your drivers, equipment, safety record, losses, radius, commodities, and business history.

For a broader explanation of how these coverages fit together, see my Commercial Truck Insurance Guide.

How Can Alex Help?

I help trucking companies understand the insurance side of FMCSA financial-responsibility requirements, obtain the coverage their operation needs, and make sure the appropriate insurance filings are submitted by the insurance company.

I'm an insurance broker, not an FMCSA or DOT compliance consultant or attorney. For regulatory or legal questions outside the insurance side, confirm the requirement directly with FMCSA or the appropriate professional.

Related Resources

• New Authority Truck Insurance — Insurance considerations for starting a trucking authority.

• Primary Auto Liability Insurance — How trucking liability coverage works beyond the federal filing.

• Motor Truck Cargo Insurance — Coverage for freight being hauled.

• Physical Damage Insurance — Coverage for damage to your own truck and equipment.

• Trailer Interchange vs. Non-Owned Trailer Coverage — Coverage considerations when pulling trailers you do not own.

• Truck Insurance Renewal Checklist — What to prepare before your trucking insurance renewal.

• New Authority Truck Insurance: What You Need Before Your Authority Goes Active — Insurance considerations for starting a trucking authority.