Trucking Insurance Requirements: DOT, MC Numbers, FMCSA, and What You Actually Need

Trucking insurance 2026 guide: DOT numbers, MC authority, FMCSA minimum limits, MCS-90, BMC-91, and what every owner-operator and fleet really needs.

Industry Spotlight | 11 min read | 2026-04-15

Trucking is the most regulated industry in America — DOT, FMCSA, state PUCs, and federal filings create a compliance maze. Here's what insurance you actually need to run legally, what the filings mean, and what it costs.

Trucking is the most heavily regulated business you can run in America, and nowhere is that more visible than on the insurance side. Every for-hire motor carrier has to satisfy three layers of requirements simultaneously: federal rules enforced by the FMCSA, state-level operating authority and PUC filings where you're domiciled or running intrastate freight, and — almost always the highest bar —…

In This Article

• The Trucking Insurance Landscape: Federal, State, and Your Contracts
• FMCSA Minimum Liability by Commodity
• Federal Filings: MCS-90, BMC-91, BMC-34, BMC-85
• Owner-Operator vs. Fleet: Different Insurance Stacks
• Auto Liability: The Core Coverage
• Motor Truck Cargo, Physical Damage, and Trailer Interchange

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