Quick answer: Hired & Non-Owned Auto (HNOA) covers your business's liability when work is done in vehicles you don't own — an employee running to the supply house in their own car, a rented truck at a trade show, a borrowed trailer. Your business gets sued; the employee's personal policy (if it responds at all) is almost never enough; HNOA fills the gap. It's one of the cheapest liability coverages sold — often a few hundred dollars a year — and one of the most commonly missing. If anyone ever drives anything for your business that isn't on your auto schedule, you need it.
Here's the claim that finds the gap: your project manager, late for an inspection, rear-ends someone in her own Honda. Her personal policy has $50,000 in liability — and its business-use exclusion may fight even that. The injured party's attorney doesn't sue her; he sues you, because the errand was yours. Without HNOA, your GL policy's auto exclusion sends the claim straight to your balance sheet.
| Coverage | Vehicle | Classic scenario |
|---|---|---|
| Hired auto | Rented, leased, or borrowed by the business | Rental box truck for an install; borrowed dump trailer |
| Non-owned auto | Employees' personal vehicles used for business | Supply runs, jobsite visits, bank deposits, sales calls |
Both cover your business's liability to third parties — bodily injury and property damage — including defense costs. Neither covers damage to the borrowed/personal vehicle itself (that's the owner's physical damage problem, or a separate hired-car physical damage endorsement for rentals).
If you own zero vehicles, HNOA can be endorsed onto your GL or written standalone. If you have an owned fleet, it's added to the commercial auto policy — usually for very little premium (the mechanics interact with the coverage symbols on your policy; see our commercial auto symbols guide).
California juries decide vicarious-liability claims against employers under respondeat superior — if the errand served the business, the business answers for it. With commercial auto verdicts trending the way our 2026 fleet outlook describes, an uncovered vicarious claim is a company-ending event for a small business, and exactly the kind of gap a certificate-of-insurance review won't catch because nobody asks for proof of coverage you don't have. The National Safety Council's employer traffic-safety data makes the frequency case plainly: motor-vehicle crashes remain a leading cause of work-related death — see NSC road safety research.
HNOA is the cheapest fix to one of the most common uninsured exposures in California business. If an employee has ever driven anywhere for you — and they have — a few hundred dollars a year closes a gap that a single left turn could otherwise turn into a seven-figure problem.
Thrive Risk Management reviews California businesses' auto programs for the HNOA gap - and closes it for less than the cost of one billable hour of defense counsel.
Get a free quoteOr call (818) 356-8150.
This article is general information, not insurance or legal advice. Coverage terms, limits, and rates vary by carrier and change over time. Talk with a licensed agent about your specific situation. Thrive Risk Management Insurance Solutions, Inc., CA License #6012320.