Under 49 CFR Part 387, every for-hire interstate motor carrier must maintain minimum liability insurance filed with FMCSA via a BMC-91 form. The required minimum is $750,000 for most non-hazardous property carriers, $1,000,000 for certain oil and hazardous substance carriers, and $5,000,000 for carriers transporting bulk hazardous materials or 16+ passengers. Operating without active insurance on file with FMCSA is grounds for immediate authority revocation and civil penalties up to $10,000 per day.
Who These Requirements Apply To
- →For-hire interstate motor carriers (with MC number)
- →Owner-operators with their own operating authority
- →Hotshot carriers operating interstate under own MC
- →For-hire passenger carriers (any size)
- →Carriers with pending new authority applications
- →Private carriers (hauling own goods, no for-hire MC)
- →Intrastate-only carriers (state rules apply instead)
- →Owner-operators leased to a carrier (carrier's policy governs)
- →Carriers operating vehicles under 10,001 lbs GVWR (non-HM)
- →Non-commercial agricultural operations
- ✓The federal minimum for most general freight interstate carriers is $750,000 under 49 CFR §387.9.
- ✓Carriers transporting oil or hazardous substances as defined in 49 CFR §171.8 need $1,000,000.
- ✓Carriers transporting bulk hazardous materials in cargo tanks, portable tanks, or hoppers need $5,000,000.
- ✓Proof of insurance is filed by your insurer via BMC-91 directly with FMCSA — a certificate of insurance at your office does not satisfy this requirement.
- ✓Every qualifying policy must include a MCS-90 endorsement under 49 CFR §387.15.
- ✓If your insurer cancels your policy, they file a BMC-35 notice giving FMCSA 30 days before your authority is revoked.
- ✓Operating without active FMCSA insurance on file carries civil penalties up to $10,000 per day under 49 CFR Part 386.
- ✓Authority does not activate until both BMC-91 and BOC-3 are on file — a mandatory 10-day waiting period applies after receipt.
What the FMCSA Insurance Rule Actually Requires (49 CFR Part 387)
The legal authority for FMCSA's truck insurance requirements is 49 CFR Part 387 — Minimum Levels of Financial Responsibility for Motor Carriers. It was enacted under the authority of 49 USC §31139, which directs the Secretary of Transportation to establish minimum financial responsibility requirements for motor carriers. Part 387 has been in effect in its current core structure since 1985, with the current minimum levels set by rulemaking and not adjusted for inflation since then.
The regulation requires every for-hire motor carrier subject to FMCSA jurisdiction to maintain continuously on file with FMCSA evidence of financial responsibility in the form of an insurance policy, surety bond, or self-insurance authorization. For most carriers, the practical path is a commercial trucking liability insurance policy with the MCS-90 endorsement, documented to FMCSA via the BMC-91 filing from the insurer.
Important distinction: The FMCSA minimum is a floor, not a ceiling. Most large shippers and freight brokers contractually require carriers to carry $1,000,000 or more in primary liability, regardless of whether federal law requires it for their specific cargo. New authority carriers frequently discover that meeting the FMCSA minimum is not enough to qualify for loads from brokers or shippers with carrier onboarding requirements.
Minimum Coverage by Commodity — 49 CFR §387.9 Reference Table
The table below maps commodity and vehicle type to the exact federal minimum under 49 CFR §387.9. Use this as the starting point for determining your required coverage. States may impose higher minimums for intrastate operations.
🧮 FMCSA Minimum Coverage Calculator
Find your required federal insurance minimum under 49 CFR Part 387.
This tool is for informational purposes only. Verify your specific requirements directly at FMCSA.dot.gov.
MCS-90 Endorsement: What It Is, What It Covers, and What It Does Not
The MCS-90 endorsement is required by 49 CFR §387.15 and must be attached to every motor carrier's primary liability insurance policy that is filed with FMCSA. The endorsement is a federally mandated clause that obligates the insurer to pay third-party claims for bodily injury, property damage, or environmental restoration caused by the insured motor carrier — up to the applicable federal minimum — even if the underlying policy would otherwise exclude the claim.
- ✓Third-party bodily injury from CMV accidents
- ✓Third-party property damage from CMV accidents
- ✓Claims that the underlying policy excludes (up to federal min)
- ✓Operations in interstate commerce even if not all routes listed
- ✓Environmental restoration costs in some circumstances
- ✓Claims where driver was not listed on policy
- ✗Damage to your own vehicle (physical damage coverage needed)
- ✗Cargo loss or damage (cargo insurance needed)
- ✗Claims above the federal minimum limit
- ✗Worker's compensation for driver injuries
- ✗Operations that are not interstate commerce
- ✗Intentional acts or criminal conduct
Critical practical point: The MCS-90 is not a standalone policy. It is an endorsement attached to your existing primary liability policy. After the insurer pays under MCS-90, they have the right to seek reimbursement from the carrier (subrogation) if the claim was excluded under the base policy terms. This means MCS-90 protects the public and FMCSA — it does not protect you from your insurer recouping payments they made on claims your policy excluded. This is why adequate primary liability coverage matters beyond the federal minimum.
BMC-91 Filing: The Proof of Insurance FMCSA Actually Recognizes
The BMC-91 (Uniform Motor Carrier Bodily Injury and Property Damage Liability Certificate of Insurance) is the form used by insurers to certify financial responsibility to FMCSA under 49 CFR §387.7. The BMC-91X is the corresponding form for excess or umbrella policies.
Owner-Operator Insurance Requirements: Four Scenarios Explained
Owner-operator insurance requirements under FMCSA depend entirely on how the owner-operator operates — specifically, whether they hold their own MC authority or operate under a carrier's authority. The requirements are fundamentally different in each scenario.
Owner-operator with own MC authority (operates independently)
High RiskOwner-operator leased to a carrier (operates under carrier MC)
Medium RiskHotshot carrier with own MC authority (gooseneck/flatbed)
Medium RiskNew authority carrier (first 12 months of operation)
High RiskHotshot Trucking Insurance Requirements
Hotshot trucking — typically defined as expedited freight hauled by a pickup truck with a gooseneck, fifth-wheel, or bumper-pull trailer — sits in a unique position under FMCSA regulations because the applicability threshold depends on the vehicle's Gross Vehicle Weight Rating (GVWR).
Types of Commercial Truck Insurance — What Each One Does and Does Not Do
The FMCSA insurance requirement under 49 CFR Part 387 is satisfied only by primary liability coverage. The table below maps each policy type to whether it satisfies the Part 387 requirement and what it actually covers.
Verify your insurance is active with FMCSA right now
Many carriers assume their insurance is on file because they paid their premium. Check your SAFER profile to confirm active BMC-91 status before your next load.
Check Your SAFER Profile →Calculate your required minimum →Step-by-Step Compliance Guide: How to Meet FMCSA Insurance Requirements
Follow these steps in order. The sequence matters — some steps cannot be completed until earlier steps are done, and certain steps must be completed before you can legally dispatch a single load.
Your minimum coverage requirement is set by your commodity type and vehicle type — not your preference or what your agent suggests. General freight non-hazardous carriers need $750,000. Certain oil and hazardous substance carriers need $1,000,000. Carriers transporting bulk hazardous materials in certain categories need $5,000,000. Confirm the applicable category before shopping for a policy.
Purchase a commercial trucking primary liability policy from a licensed insurer authorized to write in your state. Confirm that the policy includes the MCS-90 endorsement, which is mandatory under 49 CFR §387.15. The MCS-90 ensures the insurer pays third-party claims up to the federal minimum even if coverage would otherwise be denied under the policy terms. Without it, your BMC-91 filing will be rejected.
You cannot file the BMC-91 yourself. Your insurer is required to file it directly with FMCSA through the agency's electronic filing system. Confirm your insurer's BMC-91 filing timeline — most file within 1–3 business days of policy binding. Get written confirmation of the filing date. Note: a certificate of insurance in your file does not satisfy FMCSA — only the active SAFER record counts.
Go to safer.fmcsa.dot.gov and search your MC number. Confirm that the Insurance/Financial Responsibility section shows your policy as 'Active.' This is the only record that matters for enforcement purposes. If the SAFER system shows no active filing, you are not in compliance — regardless of what your insurance agent tells you.
→ Check your SAFER profile at FMCSA →The BMC-91 alone does not activate your operating authority. FMCSA also requires a BOC-3 form designating a process agent in every state where you operate or where your vehicles pass through. BOC-3 filing services typically cost $25–$40 as a one-time fee. Both the BMC-91 and BOC-3 must be on file before FMCSA activates your authority. [INTERNAL LINK: BOC-3 Filing Requirements]
Unified Carrier Registration (UCR) is a separate annual registration requirement for interstate motor carriers, brokers, and freight forwarders. UCR registration does not prove insurance but is required to operate legally. Fees are based on fleet size and are due by December 31 for the following registration year. Failure to register can result in civil penalties and is a separate violation from insurance non-compliance. [INTERNAL LINK: Unified Carrier Registration]
Set reminders at 60 and 30 days before your policy renewal. If your insurer cancels the policy mid-term, they are required to file a BMC-35 notice with FMCSA giving 30 days' advance notice. FMCSA will revoke your authority at the end of that period unless new coverage is filed. FMCSA does not send you a direct notice — they notify the public record. You are responsible for monitoring your own SAFER profile.
Real-World Examples: How These Requirements Play Out
Example 1: New authority general freight carrier in Texas
CompliantAn owner-operator in Texas receives MC authority to haul general freight in interstate commerce. FMCSA minimum: $750,000 under 49 CFR §387.9. The owner-operator binds a primary liability policy for $1,000,000 (above federal minimum, meets most broker requirements). The insurer files BMC-91 within 2 business days. The owner-operator also files BOC-3 through a process agent service ($30 one-time fee). After the mandatory 10-day FMCSA waiting period, authority activates. The new entrant safety audit will follow within 12 months. [INTERNAL LINK: How to Get Your MC Number]
Example 2: Flatbed carrier hauling oil field chemicals
CompliantA flatbed carrier in Oklahoma hauls chemical products used in oil field operations. Some loads include hazardous substances as defined in 49 CFR §171.8. FMCSA minimum: $1,000,000 under 49 CFR §387.9. The carrier carries $1,000,000 primary and adds a $1,000,000 umbrella for loads where shippers require higher coverage. The BMC-91 is filed by the primary insurer; the umbrella is documented via BMC-91X. Hazmat-certified driver required under 49 CFR §383.93 for certain loads.
Example 3: New carrier — insurance lapses at renewal
Violation — authority revokedA 3-truck carrier in Georgia allows insurance to lapse by missing a premium payment. The insurer files a BMC-35 cancellation notice with FMCSA. The carrier is unaware — no direct notice from FMCSA. After 30 days, FMCSA automatically revokes operating authority. The carrier continues dispatching for 4 days. Penalty exposure: $10,000/day × 4 days × potential per-truck application = up to $40,000+ in civil penalties, plus the cost to reinstate authority. This scenario occurs most frequently at annual policy renewals. [INTERNAL LINK: DOT Authority Cost]
Example 4: Owner-operator leased to carrier — coverage misunderstanding
Gap — personal liability exposureAn owner-operator leases their truck to a carrier. The carrier's insurance covers the owner-operator under dispatch per the lease agreement under 49 CFR Part 376. The owner-operator drives the truck to a mechanic on a personal trip — not under dispatch. An accident occurs. The carrier's primary policy, by design, does not cover non-dispatch operations. The owner-operator has no bobtail/non-trucking liability policy. The owner-operator is personally liable for the accident with no insurance protection. This gap is preventable with a bobtail policy costing approximately $30–$60/month.
Penalties for Noncompliance — 49 CFR Part 386, Appendix B
Civil penalties for financial responsibility violations are codified in 49 CFR Part 386, Appendix B. The table below reflects the current penalty ranges. Per-day violations are the most financially dangerous — they multiply with each day the violation continues unresolved.
This article was researched and written by the compliance team at TruckComplianceHQ, drawing directly on 49 CFR Part 387 (Minimum Levels of Financial Responsibility for Motor Carriers), 49 CFR Part 386 (Rules of Practice for FMCSA Proceedings — Penalties), 49 CFR §366.2 (BOC-3 requirements), and official FMCSA guidance documents. Dollar amounts, filing requirements, and regulatory citations reflect rules in effect as of May 2026. This guide is informational only — not legal advice. For carrier-specific guidance, consult a qualified transportation attorney. Verify current requirements directly at FMCSA.dot.gov.
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Frequently Asked Questions
Official Resources
All requirements cited in this guide are drawn from primary federal sources. Verify current requirements directly through official sources before making compliance or coverage decisions.
- 49 CFR Part 387 — Minimum Levels of Financial Responsibility for Motor Carriers
- 49 CFR §387.9 — Financial Responsibility Minimum Amounts
- 49 CFR §387.15 — Forms
- 49 CFR Part 386 — Rules of Practice (Penalties), Appendix B
- 49 CFR Part 376 — Lease and Interchange of Vehicles (Owner-Operator Leases)
- 49 CFR §366.2 — BOC-3 Process Agent Requirements
- FMCSA SAFER System — Verify carrier insurance status
- FMCSA Unified Registration System (URS) — Register and manage authority
- FMCSA Financial Responsibility Overview Page
- UCR Registration System — Annual carrier registration
All regulatory citations in this article were drawn directly from the Electronic Code of Federal Regulations (eCFR) at ecfr.gov, specifically 49 CFR Part 387 (current as of May 2026). Penalty amounts were verified against 49 CFR Part 386, Appendix B. Filing requirements were cross-referenced against the FMCSA Financial Responsibility webpage at fmcsa.dot.gov and FMCSA's published Forms Library. GVWR thresholds were verified against 49 CFR §390.5 CMV definitions.
Owner-operator leasing guidance was cross-referenced with 49 CFR Part 376 and FMCSA's published guidance on lease agreements. Hotshot weight threshold analysis was verified against 49 CFR §390.5 and FMCSA FAQs on commercial motor vehicle definition.