The MCS-90 is filed to demonstrate a carrier's compliance with federal minimum financial responsibility requirements. It obligates the insurer to satisfy a final judgment against the carrier for public liability arising from negligent operation of a motor vehicle, notwithstanding policy exclusions.
It functions as a surety obligation rather than true coverage, and the insurer retains the right to seek reimbursement from the insured for amounts it would not otherwise have owed.
Alternative Names:
MCS-90, Form MCS-90, Public Liability Endorsement
Why it Matters?
The MCS-90 is a last-resort safety net that becomes decisive when a policy exclusion, a rescission, or the driver's unauthorized use would otherwise leave a catastrophic loss uninsured. It applies only up to the federal minimum, which for most freight is $750,000 and higher for hazardous materials, so it is meaningful in smaller-limit cases and largely irrelevant in a well-insured claim.
Frequently Confused with
Related terms
Frequently asked questions
What are the federal minimum limits the MCS-90 guarantees?
Does the MCS-90 apply if other coverage exists?
