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

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 — the certificate of insurance demands baked into your broker and shipper contracts. If any one of those three layers isn't satisfied, you either can't operate legally, can't get dispatched, or can't enforce payment.

A single interstate for-hire motor carrier typically juggles all of the following: a USDOT number, MC (Motor Carrier) operating authority, a BOC-3 process agent designation for all 50 states, UCR (Unified Carrier Registration) renewed each year, IFTA (International Fuel Tax Agreement) decals and quarterly returns, HVUT (Form 2290) on every power unit over 55,000 lbs, and — the part we handle — the actual BMC-91 and MCS-90 insurance filings that prove to FMCSA you're covered. Drop any one of them and your authority goes inactive.

State PUCs (Public Utility Commissions) add another layer. California, Texas, Oregon, New York, and Florida all have their own intrastate authority regimes with separate filings, and some require higher liability limits than the federal floor. Then your broker and shipper contracts override everything — a $750,000 federal minimum doesn't help if Amazon Relay, Walmart Transportation, or CH Robinson won't dispatch a carrier under $1M. We help trucking clients stack all three layers correctly. Start with our trucking insurance overview and the core commercial auto page if you want the 30-second version.

The federal minimums come out of 49 CFR 387, and they've been essentially frozen since 1985 — which is why contract requirements have long since lapped them. Here are the actual floors you need to know. General freight (property, non-hazardous) is $750,000 CSL. Oil transport (non-hazardous petroleum products) is $1,000,000. Most placarded hazmat, including Division 1.1, 1.2, 1.3 explosives, poison gases, and bulk hazardous substances, is $5,000,000 — with $1,000,000 applying to a narrower category of non-bulk hazmat. Passenger carriers are split: $1,500,000 for vehicles designed to carry 15 or fewer passengers, and $5,000,000 for 16 or more. Household goods carriers sit at the $750,000 property floor and then layer cargo coverage on top.

Those are the floors, not the number you'll actually buy. The practical minimum for most for-hire interstate carriers in 2026 is $1,000,000 CSL on primary auto liability, and for many lanes $2,000,000 is the real ante. Walmart Transportation, Amazon Relay, Target, Home Depot, and most top-100 brokers require $1M primary. Specialty freight — tanker, flatbed oversize, auto transport, hazmat — routinely needs $2M-$5M, sometimes via an umbrella layered over a $1M primary. Oilfield and frac-sand hauling often starts at $2M primary plus umbrella.

Keep the coverage lines straight, because carriers and brokers do. Auto liability (the MCS-90 line) covers bodily injury and property damage you inflict on others while operating the truck. Motor truck cargo is a separate policy covering freight you're hauling. Commercial general liability (CGL) covers non-auto exposures — premises at your terminal, loading and unloading claims that fall outside auto, completed operations. Those are three different policies, often from three different carriers, and one does not substitute for another. If a broker asks for a COI with GL, cargo, and auto liability, you need to show all three lines distinctly.

This is the alphabet soup that trips up new motor carriers more than anything else. The MCS-90 is a public-liability endorsement that attaches to your auto liability policy. Every for-hire interstate motor carrier is required to carry it. It's not a separate policy — it's an endorsement your insurance company adds, and it guarantees that injured members of the public get paid up to the federal minimum even if there's an underlying coverage dispute. If your policy lapses or your carrier denies coverage, MCS-90 forces the insurer to pay the public first and then chase you for reimbursement.

BMC-91 and BMC-91X are the proof-of-insurance filings that the insurance company electronically transmits to FMCSA on your behalf. BMC-91 is filed when a single insurer provides the full federal minimum; BMC-91X is used when multiple insurers stack to meet it (for example, a $750K primary with a $250K excess that together hits the $1M required for certain hazmat operations). These have replaced the old paper certificates. Your agent and insurer handle the upload.

BMC-34 is a cargo-liability surety bond filing, required for household goods movers, with a $5,000 per-vehicle minimum and $10,000 per occurrence. BMC-84 is the freight-forwarder / broker bond itself ($75,000 minimum since the MAP-21 law), and BMC-85 is the trust-fund alternative to the BMC-84 — same $75,000 amount, held in an FDIC-insured account instead of a bond. If you're both a motor carrier and a broker, you're likely dealing with BMC-91 on the carrier side and BMC-84 or BMC-85 on the brokerage side. A lapse on any of these filings kicks off the FMCSA revocation clock — you'll get a notice, and if the insurer doesn't refile within approximately 30 days your operating authority is revoked and you can't move loads legally.

The right insurance stack depends entirely on how your authority is structured. An owner-operator leased on to a motor carrier — meaning the carrier's DOT and MC number, the carrier's dispatch, the carrier's freight — does NOT need primary auto liability. The carrier's policy covers the truck under dispatch. What that owner-operator does need is non-trucking liability (bobtail) for when the truck is moving empty and not under dispatch, physical damage to protect the tractor (and trailer if owned), and occupational accident insurance to cover the driver because the carrier's workers' comp doesn't extend to a 1099 lease-on.

An independent owner-operator with their own authority — one to three trucks, their own MC number, booking their own loads — needs the full stack: primary auto liability at $1M CSL, physical damage on the power unit (and trailer), motor truck cargo typically at $100,000 to $250,000 depending on commodity, commercial general liability at $1M, and the MCS-90 endorsement. Many also add non-owned trailer / trailer interchange coverage if they run drop-and-hook. If the operator has any non-driver employees (dispatcher, mechanic, office help), workers' comp is mandatory — see workers' comp for the state-by-state nuance.

A fleet of 5 to 25 trucks layers on additional coverages: auto liability at $1M primary, a commercial umbrella of $5M or more (because almost every top-tier shipper requires it on the COI), motor truck cargo, CGL, workers' comp on W-2 drivers, occupational accident on 1099s, employment practices liability once headcount crosses 10, and increasingly cyber liability as ELDs, TMS platforms, and load boards create ransomware exposure. If you run in Florida, see our Florida trucking insurance page for the state-specific filings and the Florida-heavy hurricane physical damage considerations.

Auto liability is the foundation of a motor carrier insurance program, and it's where the MCS-90 endorsement lives. The industry baseline since the late 1990s has been $1,000,000 CSL — Combined Single Limit — meaning one pot of $1M that covers bodily injury and property damage in any combination from a single accident. This is different from the 25/50/25 split limits you see on personal auto, where you'd have $25K per person / $50K per accident / $25K property damage. Split limits essentially don't exist in for-hire trucking; every broker and shipper COI request will specify CSL.

High-value lanes push the limit up. Tanker (especially chemicals and petroleum), flatbed with oversize or high-value loads, auto transport, hazmat, and passenger transport routinely require $2M-$5M primary or a $1M primary with a matching umbrella. Oilfield hauling in the Permian, Bakken, Eagle Ford, and Marcellus basins commonly requires $5M total limits. Intermodal drayage serving the major ports — LA/Long Beach, Savannah, Houston, Newark — often requires $2M primary because containers and chassis damage adds up fast in a multi-vehicle accident.

Your premium is driven by a short list of factors: radius of operation (local under 50 miles, intermediate 50-200, long-haul over 200), commodity, loss history from prior carriers (the loss run), driver MVRs and CDL experience, CSA BASIC scores on the carrier profile, and total annual miles. Uninsured/underinsured motorist coverage is typically added at matching limits — important, because roughly one in eight drivers nationally is uninsured. Medical payments (Med Pay) is cheap and worth carrying. For the full coverage breakdown see commercial auto.

Motor truck cargo insures the freight you're hauling, not your equipment. The federal floor for most commodities is minimal — $5,000 to $25,000 per occurrence — but contracts override that every day. The practical 2026 minimums are $100,000 for general dry-van freight, $100,000-$250,000 for refrigerated (reefer) loads because contamination and temperature-excursion claims are routinely that large, $250,000 for high-value electronics or pharmaceuticals, $250,000-$1,000,000 for auto transport, and specialty limits for household goods movers governed by the Carmack Amendment. Hazmat cargo needs an endorsement that removes the standard hazmat exclusion — many new motor carriers discover this only after a claim is denied.

Physical damage covers your own equipment. It's written on either an Actual Cash Value (ACV) or stated-value basis. In 2026, the average insured value for a Class 8 sleeper tractor runs $120,000-$180,000, day cabs $95,000-$140,000, and 53-foot dry-van trailers $35,000-$60,000. Reefer trailers run higher at $65,000-$95,000 because of the reefer unit itself. Stated value is what we recommend for owner-operators and small fleets — it locks in a payout number and avoids a fight over market value after a total loss, which matters when new-truck prices are volatile.

Trailer interchange insures non-owned trailers you're pulling under a trailer interchange agreement. If you run drop-and-hook for any major shipper — Amazon, Walmart, US Foods, Sysco, any intermodal work — you're pulling someone else's trailer and you're contractually responsible for damage to it. Trailer interchange limits of $20,000-$40,000 are standard; intermodal chassis work sometimes needs $50,000. Without this coverage a dropped landing gear or a dock-impact claim on a non-owned trailer comes straight out of your pocket.

Workers' compensation is mandatory for W-2 drivers in every state except Texas, which allows employers to opt out under specific conditions — but opting out removes the exclusive remedy and exposes you to direct negligence suits that often cost more than the comp premium would have. For a trucking fleet with W-2 drivers, the NCCI classification code is usually 7228 (long-haul) or 7219 (local/short-haul), and rates vary widely by state. Driver turnover, MVR quality, and prior claims drive your experience modification (EMR), which then drives premium.

1099 owner-operators are a different animal. They don't fall under workers' comp — instead, they (or the motor carrier leasing them on) carry occupational accident insurance. Occ Acc provides accident-only medical, disability, and AD&D benefits. It's significantly cheaper than comp — often $1,800-$3,500 per driver per year — but the benefit levels are also lower and it doesn't cover occupational disease. Many motor carriers also layer contingent liability on top of occ acc, because if a 1099 driver is reclassified as an employee after the fact (through DOL audit, state AG action, or a workers' comp board ruling), the carrier is suddenly on the hook for uninsured employee claims.

Misclassification risk is the issue that's reshaping trucking insurance most rapidly. California's AB5 and the ABC test have effectively forced many fleets to either reclassify California-based owner-operators as employees or restructure the lease-on relationship. New Jersey, Massachusetts, and Illinois have moved in the same direction. US DOL's 2024 independent-contractor rule tightened federal classification. We see fleets that used to run a pure 1099 model adding occupational accident PLUS contingent liability PLUS an employment practices liability layer specifically because a single reclassification ruling can cascade into back-pay claims, unpaid overtime, and state tax assessments. See workers' compensation and general liability for how those coverages interact.

Pricing in trucking is driven by commodity, radius, driver MVR quality, CSA BASIC scores, prior loss runs, and years in business. With that said, here's what we're actually quoting and binding in 2026 across our book. A leased-on owner-operator running under someone else's authority — non-trucking liability, physical damage on the tractor, occupational accident, and a trailer interchange endorsement — falls in the $6,000-$14,000 per year range. An independent owner-operator with their own authority, 1-3 trucks, general freight, $1M auto liability, $100K cargo, $1M GL, and physical damage, is typically $15,000-$24,000 per year per truck.

A small fleet of around five trucks running general dry-van freight regionally runs $45,000-$90,000 per year total, which pencils out to roughly $9,000-$18,000 per unit. Mid-size fleets of 15-25 power units get the benefit of scale and typically come in at $8,000-$14,000 per unit per year, inclusive of auto liability, cargo, GL, umbrella, and physical damage. Workers' comp on W-2 drivers is separate and usually adds $3,500-$6,500 per driver per year at clean experience modifications. Hazmat, tanker, and auto-transport operations run meaningfully higher — often 1.5x to 2x the general-freight numbers because of the $2M-$5M primary limits and cargo exposures.

What moves the needle most on a quote? MVRs first — a single DOT-recordable accident or a major moving violation on a driver will swing premium 10-20%. CSA BASIC scores second: if Unsafe Driving, Crash Indicator, or HOS Compliance are above FMCSA intervention thresholds, many carriers will decline or quote with heavy surcharges. Loss run history third — a clean three-year loss run is worth more than any presentation deck. Prior-carrier cancellation for non-payment or underwriting is the single biggest red flag on a submission.

Running a trucking operation and want to see what a tighter placement looks like? We shop 30+ trucking-specific carriers and can file MCS-90, BMC-91, and state PUC filings same-day once bound. Start a quote here, or if you're Florida-based, jump to our Florida trucking page and the Florida trucking insurance requirements 2026 guide for the state-specific filings, hurricane physical damage considerations, and the PIP carve-outs. For broader trucking context, our trucking industry page walks through coverage lines by operation type, and cyber liability is increasingly worth a look as ELDs, TMS platforms, and load-board credentials have become ransomware targets.