MCS-90 Endorsement 2026: What It Is, vs BMC-91/91X Filing & Cancellation
A policy-endorsement guide — what MCS-90 actually obligates, how it differs from a BMC-91 / BMC-91X filing, cancellation and authority, 387.9 floors, and why this is not a BMC-84 broker bond. Independent editorial from O Trucking.
On the Policy
Endorsement, Not a Certificate
BMC-91
The Filing Is a Different URL
30 Days
FMCSA Cancellation Notice
Not BMC-84
Broker Bond Is Another Pile
Ahmad Qazi
Founder & CEO, O Trucking LLC
Fact-Checked by O Trucking Dispatch Team
5+ years reading COIs and L&I screens carriers send before dispatch — endorsement versus filing versus broker bond, not a coverage opinion
Sources:
Written by Ahmad Qazi, founder of O Trucking LLC, drawing on 9+ years dispatching for owner-operators. Learn more about us.
O TruckingMCS-90 Endorsement 2026
Key Takeaways
- MCS-90 is on the policy. BMC-91/91X is the FMCSA filing. You need both.
- It pays public-liability judgments, including some excluded claims, up to the federal floor.
- It does not pay cargo, physical damage, or a broker who stiffed a carrier.
- Insurer usually has a right of reimbursement against the motor carrier after an excluded payout.
- Cancellation: 30 days to FMCSA (35 if mailed). New filing before the old one dies.
- BMC-84/85 is broker security. Dead authority is the reinstatement guide.
Endorsement URL — not a BMC-91 filing twin, not a broker-bond twin, not an insurance quote
What the MCS-90 Endorsement Actually Is
Form MCS-90 is the federal endorsement that must be attached to a motor carrier’s public-liability policy when that policy is how the carrier meets 49 CFR 387. The illustration lives in 49 CFR 387.15. The requirement to have security lives in 387.7. In plain language: the public gets a path to a judgment even if the motor carrier’s policy would have said no — up to the amount the form states. The motor carrier does not get a free pass. After the insurer pays an excluded claim, it can come back to the insured.
Searchers type MCS-90 endorsement because a broker asked for it, an underwriter mentioned BMC-90, or they mixed it up with the certificate on L&I. Hiring managers and insurance desks do not mash those intents. This page is the routing layer: endorsement versus filing versus broker bond, what the form pays, how cancellation kills authority, then where to go when the MC is already dead.
Related hubs, not clones: BMC-91 vs BMC-91X, BMC-84 vs BMC-85, MC authority reinstatement, new MC authority insurance, how to get MC authority, and trucking insurance requirements. Those pages cover the certificate, the bond, the revive process, and the quote. This URL owns the endorsement.
MCS-90 vs BMC-91 / BMC-91X — Endorsement vs Filing
Think of two rooms. In the policy jacket: MCS-90, signed, stating the insurer’s public-liability obligation. In FMCSA’s Licensing and Insurance system: BMC-91 if one company writes the whole amount, BMC-91X if primary plus excess layers each file their share. Brokers look at L&I. Courts look at the endorsement when a judgment needs a payor. You cannot skip either room.
| Piece | Where It Lives | Job | Trap |
|---|---|---|---|
| MCS-90 (BMC-90) | Endorsement on the liability policy | Pay public-liability judgments even if an exclusion applies | Not cargo, not your own truck, not a broker bond |
| BMC-91 | Certificate at FMCSA L&I | One insurer files the full public-liability amount | A PDF COI in email is not this filing |
| BMC-91X | Certificate at FMCSA L&I | Each layer files when coverage is split | Layers must add to the 387.9 floor |
| BMC-35 | Cancellation of BMC-91 / 91X | Insurer notice that the certificate is coming off | Authority dies if nothing replaces it |
| BMC-84 / BMC-85 | Broker / forwarder security | $75k surety or trust | Wrong pile for a trucking MC number |
| BMC-32 / BMC-34 | Cargo when required | Tiny federal cargo floor / certificate | Not what brokers demand for cargo |
Who files BMC-91? The insurance company (or its authorized e-filer), not you uploading a scan. Who signs MCS-90? The insurer, on the policy. Who should you call if L&I is blank? The underwriter, not a Facebook group. Deep filing comparison — cost bands, BMC-35, stacked excess — stays on BMC-91 vs BMC-91X. We will not reprint that table.
A COI is a letter, not a filing
What MCS-90 Covers — and What It Does Not
The form is written for the public. Bodily injury, property damage, and environmental restoration arising from the negligent operation, maintenance, or use of motor vehicles subject to financial-responsibility rules. Negligence is the usual hook. The famous feature is that certain policy exclusions — unauthorized driver, unpaid premium, a vehicle not listed — may not defeat the public’s judgment up to the federal amount. That is why underwriters care who is on the schedule.
Usually in the conversation
Third-party BI and PD from a trucking crash. Environmental restoration the form describes. Judgments, not every demand letter. Amounts up to the 387.9 floor shown on the endorsement. After an excluded payout, reimbursement against the insured.
Not this form
Cargo. Physical damage to your tractor. Worker’s compensation. A broker’s unpaid freight bill (that is BMC-84/85 territory). Punitive damages are a case-law fight, not a promise. Bobtail / non-trucking liability is a different product when you are not under dispatch. See bobtail vs NTL.
This is editorial, not a coverage opinion on your claim. Courts have spent decades arguing the edges: whose negligence, which vehicle, whether a punch-list exclusion still bites. If you are in a claim, you need the policy, the endorsement, and counsel. If you are buying a policy, you need an underwriter who actually files BMC-91.
387.9 Floors the Endorsement Has to Match
| Operation | Federal Floor | Note |
|---|---|---|
| Most for-hire property (non-hazmat) | $750,000 | Brokers often still want $1M on the COI |
| Oil listed in 49 CFR 387.9 | $1,000,000 | Product, not a slogan |
| Certain hazmat / gases / explosives in bulk | $5,000,000 | Often a primary plus excess (BMC-91X stack) |
| Private carriers / other rows | See the 387.9 table | Do not guess from a Facebook group |
The MCS-90 amount should match the BMC-91 or the stacked BMC-91X total. A $750,000 endorsement under a $5 million hazmat operation is a mismatch. Excess layers that trigger BMC-91X still need MCS-90 language on the policies that make up the stack — ask the underwriter, do not assume the primary form covers the umbrella’s silence. Official table: 49 CFR 387.9.
Cancellation — Endorsement, Certificate, Authority
49 CFR 387.7(b) generally requires at least 30 days’ notice to FMCSA before the insurer ends the security (35 days if notice is mailed). On the certificate side, that usually appears as Form BMC-35 cancelling the BMC-91 or BMC-91X. When the effective date hits and no replacement BMC-91 / 91X is on file, the operating authority that depended on that insurance is suspended or revoked. You cannot legally haul for-hire interstate freight on a dead liability filing.
| Step | Do This | Skip This |
|---|---|---|
| 1. Quote the right floor | 387.9 plus shipper asks | A $300k state minimum is not FMCSA public liability |
| 2. Bind policy + MCS-90 | Endorsement in the jacket | A personal auto policy with a magnet |
| 3. Insurer e-files BMC-91 or 91X | L&I shows active BI/PD | You uploading a scan into the MC portal |
| 4. Keep premium paid | Watch cancellation notices | Ignoring a BMC-35 letter |
| 5. If you switch insurers | New filing first, then cancel old | Gap Friday-to-Monday |
| 6. If authority already lapsed | MC authority reinstatement guide | Dispatching on a dead MC |
Cancelling MCS-90 on the policy without a replacement endorsement is how people create a gap even if they think they “switched carriers.” The new insurer must file first. Watch L&I, not a verbal. SAFER snapshots lag. Details of BMC-35 timing stay on the filing guide.
Not a BMC-84 / BMC-85 Broker Bond
Property brokers and freight forwarders post $75,000 of security — BMC-84 surety or BMC-85 trust — under 49 CFR 387.307. That stack is for unpaid transportation charges, not for a wreck on I-40. MCS-90 does not pay a carrier you stiffed as a broker. BMC-84 does not pay a family after a crash. If you applied for both motor-carrier and broker authority, you need both piles. Comparison of bond versus trust: BMC-84 vs BMC-85. We will not reprint the $75k essay.
Facebook said bond for my truck
When the Filing Dies — Reinstatement Is Another URL
If BMC-35 already hit and L&I shows no active public-liability line, you are not in an MCS-90 drafting problem. You are in an authority problem. Dispatching on a revoked MC is how people collect out-of-service and fraud-adjacent trouble. The revive path — fees, timelines, replacement BMC-91X, Form MCSA-5889 — lives on MC authority reinstatement. Come back here when you need to understand the endorsement that should have been on the policy before it lapsed.
Confirm the live filing the same way a broker should: FMCSA Licensing and Insurance, MC or USDOT, insurance tab, active BI/PD, form type, amount, insurer name, effective date. A paper MCS-90 in a drawer does not keep authority alive if the certificate is gone. Verify carrier authority and carrier lookup.
Where to go after this page
Filing: BMC-91 vs BMC-91X. Broker security: BMC-84 vs BMC-85. Dead MC: reinstatement. Matching iron with an active filing: dispatch. We will not pretend a dispatch desk is an underwriter.
Who Needs MCS-90 in Practice
For-hire interstate motor carriers who use an insurance policy (not a surety bond or trust under 387.7 alternatives) to meet public-liability rules. That is most one-truck authorities this desk sees. Lease-on contractors typically sit under the carrier’s policy and the carrier’s MCS-90 — which is why the carrier’s underwriter cares about your MVR. Own-authority hunters buy their own. Intrastate-only operations follow state financial-responsibility rules that may look similar and may not use the federal form. Do not assume a state minimum equals 387.9.
Shippers and brokers who ask to be listed as additional insured are asking for a COI endorsement, not for MCS-90. MCS-90 is for the public and FMCSA, not a private additional-insured request. Mixing those in an email is how certificates get issued wrong. Owner-operator insurance overview: owner-operator insurance.
- Ask the underwriter: MCS-90 on the policy? Amount? Who e-files BMC-91 or 91X? When will L&I show active?
- Ask yourself: am I the motor carrier, a lease-on, or a broker? Wrong stack wastes a week and a premium.
- Walk: anyone selling you a BMC-84 for a trucking MC, or an MCS-90 PDF with no insurer behind it.
Premium is not a government cart fee. The cost is the liability quote plus whatever the underwriter charges to e-file. New one-truck bands are wide — often roughly $12,000 to $25,000+ a year depending on cargo, radius, driver age, and limit. That math belongs on the filing and insurance guides, not as a fake MCS-90 price tag. Do not budget a $75,000 BMC-84 premium as if it were truck insurance.
Keep a copy of the signed MCS-90 with the policy, not only in an email thread. When a claim or a broker audit lands, the jacket is the exhibit. L&I proves the filing. The endorsement proves the obligation.
Frequently Asked Questions
What is an MCS-90 endorsement?
MCS-90 is the Endorsement for Motor Carrier Policies of Insurance for Public Liability under 49 CFR 387.15. It is attached to the auto-liability policy. The insurer agrees to pay final judgments for bodily injury, property damage, and environmental restoration caused by the motor carrier’s negligence or other wrongful act, even when a policy exclusion would otherwise apply — up to the federal minimum. It is a public-protection overlay, not cargo insurance and not a broker bond. Older ICC-era paperwork may say BMC-90. Same family.
How is MCS-90 different from BMC-91 or BMC-91X?
MCS-90 lives on the policy. BMC-91 / BMC-91X is the certificate the insurer e-files with FMCSA Licensing and Insurance to prove the coverage exists. You need both: the endorsement in the policy jacket, and the certificate on the L&I screen. A PDF certificate of insurance in your email is neither. The filing comparison — single-insurer BMC-91 versus layered BMC-91X, BMC-35 cancellation of the certificate — lives on BMC-91 vs BMC-91X. This URL owns the endorsement.
Does MCS-90 cover cargo or my truck?
No. MCS-90 is public liability: other people’s bodies, other people’s property, and environmental restoration from a crash or spill the form describes. It does not pay your freight claim. It does not pay to fix your tractor. Cargo endorsements (BMC-32 / BMC-34 when required) and physical damage are other products. Bobtail and non-trucking liability are other products. Do not tell a shipper you have MCS-90 and expect them to treat it as motor-truck cargo.
How is MCS-90 cancelled?
The insurer must give at least 30 days’ notice to FMCSA before ending the security (35 days if the notice is mailed), under 49 CFR 387.7(b). Parallel to that, the BMC-91 or BMC-91X certificate is typically cancelled on Form BMC-35. When the filing dies and nothing replaces it, FMCSA suspends or revokes the operating authority that depended on that insurance. Replacement filing first, then cancel the old policy. Do not shop on Monday after a Friday cancellation. If authority is already dead, reinstatement is its own URL.
Is MCS-90 the same as a BMC-84 or BMC-85?
No. BMC-84 is a $75,000 surety bond and BMC-85 is a $75,000 trust for property brokers and freight forwarders. Those pay (in a limited way) unpaid carrier freight bills, not wrecks. MCS-90 / BMC-91 pay public-liability judgments, not a broker who stiffed you. If you hold both carrier and broker authority, you need both stacks. Bond versus trust lives on BMC-84 vs BMC-85.
What limits does MCS-90 have to match in 2026?
49 CFR 387.9 sets the floors: generally $750,000 for for-hire property carriers of non-hazardous freight, $1 million for oil listed in that table, and $5 million for certain hazardous substances, poisonous gases, and explosives in bulk. The endorsement amount should match what the BMC-91 or stacked BMC-91X certificates show. Brokers still demand $1 million on certificates even when the federal floor is $750,000. Meet the higher of FMCSA and the shipper.
If MCS-90 pays a claim my policy excluded, do I owe the insurer?
Usually yes. The form’s point is to protect the public, not to give the motor carrier free coverage for excluded risks. After the insurer pays a judgment that the policy would have excluded, it typically has a right of reimbursement against the insured. Driving a truck the policy said was not covered, or running a radius you hid, is how that clause becomes a second bill. Read the endorsement and the exclusions with an insurance professional. This page is editorial, not a coverage opinion.
Does O Trucking sell MCS-90 or file BMC-91?
No. O Trucking LLC is a dispatch and resources company. We do not underwrite liability, we do not e-file BMC-91, and we do not charge carriers for a form walkthrough. Authority holders who already have an active filing and matching iron start at /dispatch/. How the certificate is filed lives on BMC-91 vs BMC-91X. How to stand an MC back up lives on MC authority reinstatement.
Why This Is Its Own URL
Search intent is the policy endorsement, not the certificate
People type MCS-90 because a broker or underwriter said the word. BMC-91 vs BMC-91X already owns the filing. BMC-84 vs BMC-85 owns the broker bond. Reinstatement owns the dead MC. This page is the endorsement: what it pays, what it does not, how cancellation works, and the reimbursement sting.
We dispatch carriers; we do not file BMC-91
Filing: BMC-91 vs BMC-91X. Bond: BMC-84 vs BMC-85. Revive: MC authority reinstatement. Active authority with matching iron: /dispatch/.
Related O Trucking pages
Read the actual form illustration in 49 CFR 387.15 before you argue with a broker about whether “you have MCS-90.” If L&I is blank, you do not have a filing. If the jacket has no endorsement, you have a policy that may not satisfy 387. If you hold broker authority too, buy the $75k stack separately. Three rooms. Three URLs. This one is the endorsement.
Environmental restoration on MCS-90 is not a blank check for every cleanup statute, and it is not pollution coverage you buy for a tanker product. Liquid freight still needs the right tank policy. If the operation is fuel or chemical, the 387.9 row may already be $1 million or $5 million — and the cargo/pollution conversation is a different underwriter. Do not hang a petroleum trailer on a $750,000 general-freight MCS-90 and hope.
Named insured must match the MC legal name. A DBA on a magnet is how filings bounce. If you just formed an LLC, the policy, the MCS-90, the BMC-91, and the MC application need the same legal string. That is a paperwork problem, not a dispatch problem.
Need the Filing, the Bond, or Freight on Authority You Still Hold?
BMC-91 vs BMC-91X is the certificate. BMC-84 vs BMC-85 is broker security. MC authority reinstatement is the revive path. Authority holders with an active filing can talk dispatch. O Trucking does not underwrite MCS-90.