FMCSA Insurance Requirements for Interstate Trucking (2026 Guide)

If you cross state lines with a commercial truck, federal rules apply before any state requirements. The Federal Motor Carrier Safety Administration (FMCSA) sets minimum liability limits and filing requirements that every interstate carrier and owner-operator must meet, regardless of home state.

FMCSA Minimum Liability Limits

FMCSA liability limits are based on what you haul and how heavy your vehicles are.

• $750,000: General freight (minimum federal requirement)
• $1,000,000: Most common requirement for brokers and shippers
• $1,000,000–$5,000,000: Hazardous materials, depending on commodity
• $300,000: Vehicles 10,001 lbs or less (non-hazmat)

Even if your state allows lower limits, most brokers and shippers will require at least $1,000,000 in liability coverage to load you.

Required Federal Filings

FMCSA uses filings to verify that your insurance is active and meets minimum standards.

• BMC-91X: Proof of liability insurance on file with FMCSA
• MCS-90: Endorsement for public liability attached to your policy
• BOC-3: Process agent filing so you can be served legal documents in any state

If these filings lapse, you can be placed out of service—even if you technically still have coverage.

Who Must Comply With FMCSA Requirements?

You are subject to FMCSA rules if you:

• Operate a commercial motor vehicle in interstate commerce
• Haul regulated commodities across state lines
• Have an active USDOT and MC number

Intrastate-only carriers may follow state rules instead, but many still choose FMCSA-level limits to satisfy broker and shipper requirements.

How FMCSA Requirements Affect Your Insurance Costs

Higher liability limits increase your base premium, but they also open the door to better freight and stronger contracts. Underwriters look at:

• Your required liability limit (750K vs. 1M+)
• Your cargo type and radius
• Your safety scores and loss history

Meeting FMCSA minimums is the starting point. Strong safety practices and clean operations are what keep your premiums competitive over time.

Staying Compliant With FMCSA Rules

To stay compliant and avoid interruptions:

• Confirm your liability limits match your operating authority and freight
• Keep BMC-91X, MCS-90, and BOC-3 filings active and up to date
• Monitor your USDOT and MC status regularly

Working with a trucking-focused insurance agency makes it easier to keep filings current and aligned with your operations.

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