Bodily injury and property damage you cause operating a motor vehicle for hire. The anchor line — every other coverage layers on this one.
Floor$750,000 CSL — 49 CFR §387.9 minimum for general freight; $5M for hazmatAuthority49 CFR §387.9 (financial responsibility) + §387.15 (MCS-90 endorsement)
What it covers
The anchor line every program builds on.
Third-party bodily injury and property damage arising from the operation of a covered power unit and any trailer attached. Auto liability is the federal financial-responsibility line for interstate for-hire motor carriers, mandated by 49 CFR §387.9 at $750K combined single limit for general freight (more for hazmat and household goods). Every for-hire MC carries a Form MCS-90 endorsement on this policy as the federal public-protection backstop. Broker contracts almost universally require $1M CSL; many shipper contracts require $2M, with excess / umbrella layered above to reach $5M+ for sensitive lanes.
When you need it
Triggers — when this line is required.
Operating any commercial motor vehicle under USDOT authority — interstate or intrastate for-hire
Adding a power unit mid-term (pro-rata premium endorsement)
Hauling for-hire — for-hire status, not commodity, triggers federal requirements
Broker contracts requiring $1M+ CSL with the broker as a named additional insured
What AL does NOT cover
Cargo damage — that's MTC (Motor Truck Cargo)
Damage to your own equipment — that's APD (Auto Physical Damage)
Pollution beyond MCS-90 federal cleanup floor — needs separate pollution endorsement
Limits
Limits we recommend by segment.
These are public-facing baselines for typical risk profiles. The intake re-derives line-specific limits based on your actual operation, contract obligations, and loss profile.
Owner-operator
$1M CSL with MCS-90 endorsement
Small fleet (2-10)
$1M CSL primary; $1M-$2M XS for sensitive lanes
Mid-fleet (11-50)
$1M CSL primary; $2M-$4M XS / umbrella tower
Large account (51+)
$1M CSL primary; $5M-$10M XS for contract compliance
Carriers
Day-one carriers writing AL.
From the panel that ranks top-3 per line for your risk profile. Each carrier clears the A.M. Best A- floor; final selection is made in the piece-out matrix at quote time.
Progressive Commercial
Preferred · Standard
Northland (Travelers)
Preferred · Standard
Great West Casualty
Preferred · Standard
Berkshire / NICO
Preferred · Standard
Canal Insurance
Non-standard
Sentry Insurance
Preferred · Standard
Common misconceptions
What rookie operators get wrong.
Myth
The federal $750K minimum is enough for general freight.
Truth
It's the floor for federal compliance — but virtually every broker contract requires $1M+ CSL, and many shipper contracts (FMCSA-tracked lanes, Walmart, retail OTR) require $2M+. Binding at the federal minimum locks you out of half the load board.
Myth
MCS-90 covers me like a normal liability policy.
Truth
MCS-90 is a public-protection endorsement — it pays third-party claims even when the underlying policy denies coverage, and the carrier seeks reimbursement from you. It's a federal compliance instrument, not a coverage upgrade.
Myth
My auto liability covers cargo too.
Truth
It does not. AL pays third-party bodily injury and property damage. Damage to the cargo you're hauling is MTC (Motor Truck Cargo) — an independent line that needs its own bind on a carrier with cargo appetite.
FAQ
Frequently asked
Do I need to file the MCS-90 myself?
No. Your AL carrier files the MCS-90 endorsement with FMCSA's Licensing & Insurance Division automatically on bind. We confirm filing landed in L&I before treating the bind as complete.
What's the difference between $750K CSL and $1M CSL?
$750K is the federal floor for general freight (49 CFR §387.9). $1M is the practical broker-contract floor — nearly every broker and most shippers require it. The premium delta is typically small relative to the access it unlocks.
How is a hazmat AL different?
Hazmat-placarded operations require $5M CSL under §387.9 (or $1M for limited-tier hazmat). The MCS-90B (hazmat-specific) endorsement attaches in place of MCS-90. Carrier appetite narrows significantly — Berkshire-NICO, Great West, and a few specialty markets write hazmat AL well; most don't.
If I add a tractor mid-term, does my AL premium change?
Yes — endorsement adds a pro-rata premium for the remaining policy term based on the unit's risk factors (year, value, garaging zip, driver assignment). We coordinate the endorsement with your carrier and surface the pro-rata cost before you commit.
Can I bind AL with one carrier and excess with another?
Yes — this is the heart of multi-carrier piece-out. Excess / umbrella towers commonly layer above a different primary AL carrier, with coordination clauses or 'follow form' language ensuring the tower attaches cleanly. We confirm attachment language at bind.
Ready for an AL quote?
One intake. Per-line submissions to your top 3 carriers. A coordinated binder.
Drop your email and you'll get one notification — the day Northridge
opens for quote intake and binders go on the wire. No newsletter,
no third-party transfer.
You're on the watch list.
One email will land the day Northridge goes on duty. Until then —
every quote surface across the site is preview-only.