BMC-91 vs BMC-91X: Insurance Filings Explained

The BMC-91 and BMC-91X are the forms your insurer files with FMCSA to prove you carry the federal minimum liability coverage. Your MC can't go active until one is on record.

The BMC-91 and BMC-91X are certificates of insurance that your insurance company files electronically with FMCSA. They tell FMCSA your company carries at least the federal minimum liability coverage. FMCSA won't grant a new operating authority until that filing is on record, and it has to stay on record for as long as you run.

You don't file either form yourself, and you don't pick which one. Your insurer does. What you control is buying the policy, getting the details right, and checking that the filing actually landed.

What is the difference between a BMC-91 and a BMC-91X?

Both prove the same thing. The difference is how the coverage is put together.

Under 49 CFR 387.313T, a BMC-91 is filed for the full required limits. A BMC-91X can show full coverage or coverage that's been aggregated, meaning more than one insurer stacks primary and excess layers to reach the minimum. When insurers stack coverage, each one files its own BMC-91X, and the form has to show whether it's primary or excess.

For a one-truck carrier with a single policy, it rarely matters which form appears. FMCSA's own filing chart lists the BMC-91, the BMC-91X or a BMC-82 surety bond as acceptable ways to meet the liability requirement.

BMC-91X vs MCS-90: what's the difference?

The BMC-91X is a filing with FMCSA. The MCS-90 is an endorsement on your insurance policy. Your insurer files the BMC-91X so FMCSA's record shows the coverage behind your operating authority (49 CFR 387.313T). The MCS-90 is attached to the policy itself, and FMCSA's filing chart lists it for all for-hire and interstate motor carriers (49 CFR 387.15).

You don't send the MCS-90 to FMCSA. The rule says proof of the required coverage, such as the MCS-90, is kept at your principal place of business (49 CFR 387.7(d)). So a for-hire carrier with its own authority ends up with both: the MCS-90 on the policy and the BMC-91X on FMCSA's record.

Who files the BMC-91X for a new authority?

Your insurance company. FMCSA's insurance filing page says that once you apply for operating authority, "a financial responsibility provider must file the appropriate insurance form(s) on behalf of the applicant." The regulations require insurers to file these forms electronically (49 CFR 387.323).

FMCSA also tells new applicants to contact their insurer about the filing right after they get their docket number. So when you bind a policy, ask the agent directly: "Has the BMC-91X been filed with FMCSA, and under what name and USDOT number?"

How much coverage does the filing have to show?

It depends on what you haul and how heavy the truck is. From FMCSA's insurance filing chart for for-hire property carriers:

If you run a semi, or a box truck rated at 10,001 pounds or more, hauling general freight, you're in the $750,000 row. That's the federal floor, not what brokers want. C.H. Robinson's and TQL's carrier pages both list $1,000,000 auto liability and $100,000 cargo, and FMCSA requires no cargo filing for general freight. Check what brokers require from a new MC before you settle on limits.

The full list of federal minimums, including cargo and what happens on a lapse, is in FMCSA insurance requirements for a new authority. To see which insurers actually filed for new MCs this year, read our analysis of 2026 filings.

Why is my MC still pending after I bought insurance?

A few common reasons. The filing may not have been submitted yet. The policy's effective date may be in the future. Or the name or address on the filing may not match your application.

That last one trips people up. FMCSA's filing page warns that the business name and address on your filings should match your application exactly, and that "any deviation results in the delay of granting of the authority." So keep the small things consistent too, like whether "LLC" is part of the name.

If the insurance shows on your record and you're still pending, read insurance filed but MC still pending. The other filing FMCSA waits on is the BOC-3.

What happens if I wait too long to file insurance?

Your application can be dismissed. FMCSA's filing page says that if an applicant doesn't comply within 20 days of the application's publication in the FMCSA Register, FMCSA serves a decision saying the application will be dismissed unless the applicant complies within 60 days.

Plenty of new carriers sit right in that window. We looked at the 11,038 carriers that first applied for authority between July 1 and August 10, 2026. By October 8, only 52.4% had an insurance filing on record. Of the 5,561 that weren't active, 3,068 had their BOC-3 done but no insurance filing.

The public record doesn't say why a carrier stalls. If cost or finding an agency that writes new authorities is your holdup, you can get quotes from up to three agencies that write new authorities with one form.

Can the filing be canceled after my MC is active?

Yes. Under 49 CFR 387.313T(d), a filing can't be canceled until 30 days after a cancellation notice (Form BMC-35) is filed with FMCSA. FMCSA's filing page says carriers have to keep proof of insurance on file after the grant to avoid revocation.

So a missed premium doesn't kill your authority overnight, but it starts a clock. Among carriers that applied since July 1, 2026, our data shows 108 whose authority later went inactive with an insurance cancellation as the reason on file. Know when your premium drafts and who to call if a payment fails.

How do I check that my insurance filing is on record?

Use the public record, not the agent's email. Enter your USDOT or MC number here and First Load shows whether an insurance filing and a BOC-3 are on file, next to your authority status. If you'd like an email the day the filing lands, track your MC for free.

First Load is a private company, not FMCSA and not an insurance agency.

Frequently asked questions

Do I need a BMC-34 cargo filing?

Not for general freight. FMCSA's filing chart lists a $0 cargo requirement for for-hire property carriers and asks for a BMC-34 (or BMC-83) only from household goods carriers and household goods freight forwarders. Brokers may still want $100,000 in cargo coverage, but that's their rule, not FMCSA's.

How long does a BMC-91X take to show on FMCSA?

Usually a day or two after your insurer submits it. Of the 3,842 insurance filings dated September 10 to October 6, 2026 on carriers that applied since July 1, 63.4% showed up in FMCSA's public data by the next day and 76.9% within a week. If yours hasn't, ask the agent for the filing date.

Will my MC go active the day the BMC-91X posts?

Not always. The BOC-3 and FMCSA's review still have to be done, and in our September 2026 data the median was 15 days from insurance filing to active authority. Here's the full MC timeline.

Who needs a BMC-91X filing?

Carriers that apply for or hold operating authority and have to prove liability coverage to FMCSA. Every for-hire property row on FMCSA's chart, from vehicles under 10,001 pounds to hazmat, lists a BMC-91, BMC-91X or BMC-82 surety bond. For the full list of what FMCSA does and doesn't require, see FMCSA insurance requirements for a new authority.

Sources

• FMCSA: Insurance Filing Requirements (filing chart incl. cargo and BMC-34 rows and MCS-90 endorsement, who files and when, name matching, dismissal timeline; last updated March 26, 2026, checked October 13, 2026)
• eCFR: 49 CFR Part 387, Subpart C (387.301T filing required, 387.303T minimum limits, 387.313T forms and cancellation notice, 387.323 electronic filing)
• eCFR: 49 CFR Part 387, Subpart A (387.7(d) proof kept at principal place of business, 387.15 Form MCS-90)
• C.H. Robinson carrier FAQ and TQL carrier FAQs (insurance limits, checked September 2026)
• First Load data: FMCSA public authority, insurance and BOC-3 records, stored nightly by First Load since July 2026. Counts as of October 8, 2026; time-to-show figures pulled October 13, 2026.

Last verified 2026-10-13 · First Load editorial · First Load is a private company, not FMCSA. The public record can lag and other requirements or holds may not show in it.