Glossary · updated May 2, 2026
BMC-91 / BMC-91X
By Korey Sharp-Paar · Reviewed by the Fast Trucking Compliance team
Definition
BMC-91 and BMC-91X are the FMCSA filings that prove a motor carrier carries the required primary liability insurance. BMC-91 covers general commodities; BMC-91X covers carriers transporting hazardous materials in bulk. The insurer (not the carrier) files the form electronically with FMCSA Licensing and Insurance once a primary policy is bound. The filing must list the federal minimum BIPD limit applicable to the cargo class. A 30-day notice of cancellation is required from the insurer; absent a replacement BMC-91, FMCSA automatically deactivates the carrier's MC authority. Brokers file BMC-84 (surety bond) or BMC-85 (trust fund) instead.
Authoritative source
Read more
Trucking Insurance RequirementsBMC-91 minimums, cargo coverage, and the 49 CFR Part 387 financial responsibility schedule.
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