Product Liability Insurance for California Businesses

Product liability insurance pays to defend your business, and pays damages, when a product you made, sold, distributed or imported injures someone or damages their property. In California, that exposure doesn't stop with the manufacturer. Under state law, retailers, distributors and in some cases online marketplaces can be held strictly liable for a defective product, even if they never touched the design and did nothing careless.

For most small businesses, product liability coverage isn't a separate policy. It's the products-completed operations part of a commercial general liability policy or a BOP. The question is whether your policy actually includes it, whether the limit is high enough, and whether an exclusion takes away what you think you bought. Our business liability insurance page covers the policy side. This guide explains the law that drives the risk and the coverage details that matter.

Strict product liability in California: why sellers are on the hook

Greenman: the case that started it

California's strict product liability rule traces back to one case. In Greenman v. Yuba Power Products, Inc. (1963) 59 Cal.2d 57, the plaintiff was injured when a piece of wood flew out of a combination power tool. The California Supreme Court held:

"A manufacturer is strictly liable in tort when an article he places on the market, knowing that it is to be used without inspection for defects, proves to have a defect that causes injury to a human being."

"Strictly liable" means the injured person doesn't have to prove the manufacturer was negligent. They have to prove the product was defective and the defect caused the injury.

Vandermark: retailers too

A year later, in Vandermark v. Ford Motor Co. (1964) 61 Cal.2d 256, the court extended strict liability to the dealer that sold the car:

"Retailers like manufacturers are engaged in the business of distributing goods to the public. They are an integral part of the overall producing and marketing enterprise that should bear the cost of injuries resulting from defective products."

This is why a hardware store, boutique or auto parts shop can be named in a product suit over something it simply bought and resold. A retailer may have rights to seek indemnity from the manufacturer, but those rights are worth only as much as the manufacturer's solvency and insurance. That's not much if the manufacturer is overseas.

Three kinds of defect

California courts recognize three ways a product can be defective:

Defect type	What it means	Example
Manufacturing defect	The product differs from the manufacturer's intended design	A batch of ladders with a bad weld
Design defect	The design itself is unsafe. Under Barker v. Lull Engineering Co. (1978) 20 Cal.3d 413, a design can be defective if the product fails to perform as safely as an ordinary consumer would expect, or if the risks of the design outweigh its benefits.	A space heater with no tip-over shutoff
Failure to warn	Inadequate warnings or instructions about a non-obvious risk	A cleaning concentrate without dilution or ventilation warnings

E-commerce: Bolger v. Amazon

In Bolger v. Amazon.com, LLC (2020) 53 Cal.App.5th 431, a customer bought a replacement laptop battery listed by a third-party seller. Amazon stored it in its warehouse, packaged it and shipped it. The battery allegedly exploded and burned her. The Court of Appeal held that Amazon could be strictly liable because it placed itself between the seller and the buyer in the chain of distribution. The court also held that federal Section 230 didn't shield Amazon, because the claim was based on Amazon's own role in distributing the product, not on content it published.

The takeaway for small e-commerce sellers: you're in the chain of distribution too. If you sell under your own brand, import, or private-label goods made by someone else, a plaintiff may treat you as the manufacturer.

Who's exposed, and how

Your role	Typical exposure	What to watch
Manufacturer (including food producers, makers, assemblers)	Highest. All three defect types.	Design records, testing, warnings, batch traceability
Importer / private label	Often treated like the manufacturer, since the foreign maker may be out of reach	Supplier insurance and contracts; your own limits
Distributor / wholesaler	Strict liability as part of the chain	Vendor's endorsements from manufacturers; contract indemnity
Retailer	Strict liability under Vandermark	Same as distributor, plus anything you modify, repackage or relabel
E-commerce seller	As retailer, or as manufacturer if private-label	Marketplace insurance requirements; overseas suppliers
Contractor / installer	Completed-operations claims after the job is done	Completed-ops limit; how long coverage needs to stay in place

One nuance: the Bolger opinion notes that California courts have repeatedly declined to impose strict liability on dealers in used products in some circumstances. If you sell used goods, the analysis is different. Talk to a lawyer about your specific exposure.

How product liability coverage works under a general liability policy

The products-completed operations hazard

The standard commercial general liability form (ISO CG 00 01) treats product claims as a defined category, the "products-completed operations hazard." In plain terms, it includes bodily injury and property damage that:

• happens away from premises you own or rent, and

• arises out of "your product" or "your work,"

• once the product is no longer in your physical possession, or the work is completed or abandoned.

"Your product" is defined broadly. It covers goods you manufacture, sell, handle, distribute or dispose of, and it expressly includes warranties or representations about the product and "the providing of or failure to provide warnings or instructions." Failure-to-warn claims sit squarely within product coverage.

The separate aggregate

The standard form has a Products-Completed Operations Aggregate Limit that is separate from the general aggregate. Limits vary by policy, and a single bad batch can produce many claims against that one aggregate. For manufacturers and importers, that's often the strongest argument for an umbrella. See commercial umbrella vs excess liability.

Watch for these

• "Products-completed operations are subject to the General Aggregate Limit." Some classifications on your declarations say this, which means the separate products aggregate doesn't apply.

• Products-completed operations exclusions. Some policies, often cheap ones written for "service" businesses, exclude this hazard entirely by endorsement. If you sell any product, check for this.

• Designated product exclusions. Carriers sometimes exclude specific products (for example, certain supplements, e-cigarettes or batteries).

• Claims-made product policies. Some product liability policies for higher-hazard products are written claims-made rather than occurrence. That changes what happens when you stop selling the product. See claims-made vs occurrence policies.

If you're comparing a BOP with a standalone GL, both typically include products-completed operations, but eligibility differs. Many manufacturers aren't eligible for a BOP. See our business owner's policy (BOP) guide and general liability insurance overview.

Do you make, import or sell products under your own label? TSM is an independent agency — we compare carriers for you. Call (209) 524-6366 (Modesto) or (530) 221-3031 (Redding).

What product liability coverage doesn't do

Your own product

The standard CGL form excludes property damage to "your product" arising out of it or any part of it. If your defective water heater floods a customer's house, the policy may respond to the flooded house, but not to replacing the water heater itself.

Recalls

The standard CGL form also excludes costs for the "loss of use, withdrawal, recall, inspection, repair, replacement, adjustment, removal or disposal" of your product, your work or impaired property when it's recalled because of a known or suspected defect. In other words, a standard GL policy does not pay for a recall.

Recall coverage is sold separately, usually as product recall or product contamination insurance, especially for food and beverage producers. It can cover costs such as notification, shipping and disposal, and depending on the policy, some lost profits. The terms vary widely, so compare specific forms.

Recalls can also involve federal reporting duties. Under the Consumer Product Safety Act, manufacturers, distributors and retailers of consumer products who obtain information reasonably supporting the conclusion that a product contains a defect that could create a substantial product hazard (among other triggers) must report it to the U.S. Consumer Product Safety Commission (15 U.S.C. §2064(b)). CPSC regulations say "immediately, that is, within 24 hours" (16 CFR §1115.14(e)). Food, drugs, vehicles and some other products fall under other agencies.

Professional advice

If your loss stems from advice, design services or specifications you provided as a service rather than a product, that may be a professional liability issue. See general liability vs professional liability.

Prop 65 and insurance: a cautious note

California's Proposition 65 (the Safe Drinking Water and Toxic Enforcement Act of 1986) says no person in the course of doing business shall knowingly and intentionally expose anyone to a chemical known to the state to cause cancer or reproductive toxicity without first giving a "clear and reasonable warning" (Health & Safety Code §25249.6). The key points for businesses:

• Penalties: up to $2,500 per day for each violation (§25249.7(b)).

• Private enforcement: private parties can sue in the public interest after giving 60 days' notice to the alleged violator and to public prosecutors (§25249.7(d)).

• Small business exemption: businesses with fewer than 10 employees are not "persons in the course of doing business" under the law (§25249.11(b)).

• Retailers: the statute directs that, to the extent practicable, the warning burden be placed on the producer or packager rather than the retail seller (§25249.11(f)). Retailers can still be named, and responsibilities between suppliers and sellers are detailed in regulations.

Where insurance comes in: standard general liability policies cover "damages because of bodily injury or property damage." A typical Prop 65 action seeks civil penalties and an injunction, not damages for someone's injury. In Ulta Salon, Cosmetics & Fragrance, Inc. v. Travelers Property Casualty Co. of America (2011) 197 Cal.App.4th 424, the Court of Appeal held that a CGL insurer had no duty to defend a Prop 65 suit that sought only civil penalties and injunctive relief.

So don't assume your GL policy will respond to a Prop 65 notice. Specialty Prop 65 coverage is offered in some markets, often with a sublimit. Coverage depends entirely on the policy wording. If you receive a 60-day notice, call a lawyer experienced in Prop 65 and send the notice to your agent immediately.

Contracts, marketplaces and certificates

Product exposure is often managed through contracts as much as insurance:

• Buyers will ask for proof. Large retailers, distributors and online marketplaces commonly require suppliers to carry product liability coverage at specified limits and to add them as additional insureds. Marketplace requirements change, so check the current terms in your seller agreement. Learn what "additional insured" means.

• Ask your suppliers for the same. If you resell, ask manufacturers for a certificate showing products coverage and a vendors endorsement naming your business. If the manufacturer is overseas with no U.S. coverage, assume you're the one who'll be sued.

• Indemnity agreements shift costs between parties, but they're only as good as the indemnitor's ability to pay.

Timing: claims can arrive years later

California generally gives injured people two years to sue for injury (Code of Civil Procedure §335.1), but the clock often starts at the injury, not the sale. A product sold years ago can cause an injury today. Under an occurrence policy, the policy in force when the injury happened responds. So keep old policies, and keep products coverage in force while products you sold are still in use. If a claim arrives, see when a customer sues your business.

Who needs product liability coverage

• Manufacturers, processors and food producers, from small batch to production scale. See manufacturing and wholesale insurance.

• Importers and private-label brands

• Wholesalers and distributors

• Retail stores and e-commerce sellers. See retail and e-commerce insurance and retail business insurance in California.

• Restaurants and caterers selling packaged goods

• Contractors and installers, for completed-operations claims after the job is done

• Farms and ag businesses that sell direct to consumers or retailers

FAQs

Do I need product liability insurance if I only resell products?

Usually, yes. In California, retailers and distributors can be strictly liable for defective products they sell (Vandermark v. Ford Motor Co., 1964). The manufacturer's insurance may help, but you can be sued directly, and you need your own defense.

Does general liability insurance cover product liability?

Most standard commercial general liability policies and BOPs include products-completed operations coverage, with its own aggregate limit. Some policies exclude it by endorsement, though, so check your declarations and endorsements.

Does product liability insurance cover recalls?

No. The standard CGL form excludes recall, withdrawal and replacement costs. Recall or contamination coverage is a separate policy.

Does my insurance cover a Prop 65 lawsuit?

Usually not under a standard GL policy. Prop 65 actions typically seek civil penalties and injunctions rather than damages for bodily injury, and a California court has held a CGL insurer had no duty to defend such a suit. Specialty coverage exists in some markets. Read the wording carefully.

Is product liability insurance required in California?

No state law requires it for most businesses, but contracts often do. Retailers, distributors and online marketplaces commonly require suppliers and sellers to carry it and to name them as additional insureds.

What is strict product liability?

It's liability without proof of negligence. The injured person has to show the product was defective (in manufacture, design or warnings) and that the defect caused the injury. California adopted it in Greenman v. Yuba Power Products (1963).