Products Liability: Definition and How It Works for Commercial Insurance

Products liability is the legal and insurance concept governing a business's responsibility for bodily injury or property damage caused by its products after those products have left the insured's custody or control. In commercial insurance, products liability coverage is typically included as part of Coverage A of a standard Commercial General Liability (CGL) policy under ISO form CG 00 01 — specifically under the products and completed operations hazard. If a product a business manufactures, distributes, or sells causes harm to a third party after it reaches the customer, products liability coverage responds to the resulting claim.

What Products Liability Covers

Under a standard CGL policy, products liability coverage pays for:

Bodily injury (BI) to a third party caused by a product — for example, a consumer injured by a defective power tool, or a patient harmed by a contaminated food product
Property damage (PD) to third-party property caused by a product — for example, a faulty appliance that causes a house fire, or a defective component that damages the equipment into which it was installed
Defense costs for covered claims, including investigation, legal defense, and settlements, typically in addition to (not within) the per-occurrence limit under standard CGL forms

Coverage applies on an occurrence basis under standard ISO forms — the policy in effect when the bodily injury or property damage occurs is the responding policy, even if the claim is filed in a later policy year. This trigger is important for long-tail products liability exposures, such as defective building materials or medical devices where harm may not manifest for years after purchase.

Products/Completed Operations as a Separate Hazard

The ISO CGL form treats products liability and completed operations as a combined but separate aggregate from the general liability aggregate. A standard $1 million per-occurrence / $2 million aggregate CGL policy carries:

$2,000,000 general aggregate — covering premises and operations claims
$2,000,000 products/completed operations aggregate — a separate pool covering products claims and claims arising from work after it is finished

This bifurcation ensures that a large premises claim (e.g., a slip-and-fall) cannot deplete the aggregate available for products claims — and vice versa. Brokers advising manufacturers or contractors with significant products or completed operations exposure should evaluate whether a dedicated policy endorsement or standalone products liability policy is warranted to provide aggregate limits beyond what a packaged CGL offers.

Key Exclusions

Standard CGL products liability coverage does not cover everything. Significant exclusions include:

Recall and sistership costs. The cost of recalling, withdrawing, inspecting, repairing, replacing, or disposing of the insured's products — even if due to a defect that causes bodily injury — is excluded. Product recall expense coverage must be added by endorsement or purchased on a separate product recall policy.

Damage to the product itself. Property damage to the insured's own product is excluded. CGL covers damage to third-party property caused by the product, not the product's failure to perform its intended function. A software malfunction that damages data on the customer's systems may trigger coverage; a software malfunction that renders the software itself unusable does not.

Business risk exclusions (j)(5) and (j)(6). Work-product exclusions apply where the property damage is to the work itself (contractor's own work) or arises from a failure to perform as expected. These interact with products liability when the product is an integrated component of a larger work product.

Expected or intended injury. Intentional damage or injury is excluded across all of Coverage A.

Contractually assumed liability. Liability assumed by the insured under contract is excluded unless it falls within the definition of an insured contract — meaning standard indemnification agreements with distributors or retailers must be reviewed to confirm contractual liability coverage applies.

When a Standalone Products Liability Policy Is Needed

A standalone products liability policy (as opposed to the products coverage embedded in a CGL) is appropriate when:

The exposure is large relative to the CGL aggregate. A manufacturer shipping hundreds of thousands of units annually may face products liability aggregates that a $2 million CGL aggregate cannot realistically cover. A dedicated products liability policy with limits of $5 million, $10 million, or higher is common in manufacturing, food and beverage, pharmaceutical, and consumer goods industries.
The CGL insurer excludes the product. Excess and surplus lines CGL underwriters frequently exclude specific products or product categories (medical devices, firearms, dietary supplements, certain chemicals). A standalone products liability policy placed with a specialty insurer fills the gap.
Import or distribution liability. U.S. importers and distributors of foreign-manufactured goods bear strict products liability exposure under U.S. tort law even if they did not design or manufacture the product. Many CGL carriers restrict or exclude importers; a standalone products liability policy is the standard solution.
Completed operations tail. Contractors and service businesses with completed-operations products exposure — where defective work causes harm after project completion — may need dedicated completed-operations tail coverage if the primary CGL aggregate is otherwise exhausted by operations claims.

Products Liability, Strict Liability, and Negligence

Under U.S. products liability law (primarily state tort law), plaintiffs can assert three distinct legal theories:

Negligence — the manufacturer or seller failed to exercise reasonable care in design, manufacture, or warning
Strict liability — the manufacturer is liable for harm caused by a defective product regardless of negligence, under the doctrine established in Greenman v. Yuba Power Products, Inc., 59 Cal.2d 57 (1963), and codified in Restatement (Second) of Torts §402A
Breach of warranty — the product failed to conform to an express or implied warranty

CGL products liability coverage responds to all three theories (subject to policy exclusions). Strict liability exposure is particularly significant for manufacturers because it removes the plaintiff's need to prove negligence — making defense more difficult and settlement pressure higher.

Related Terms

Commercial General Liability (CGL) — products liability is Coverage A of the standard CGL form; the policy that most businesses rely on for products exposure
Aggregate Limit — products/completed operations has a separate aggregate under standard CGL; understanding this limit is essential to evaluating adequacy for high-volume manufacturers
Occurrence Policy — products liability CGL coverage typically uses an occurrence trigger, meaning the policy in effect when injury occurs responds regardless of when the claim is filed
Additional Insured — distributors, retailers, and project owners frequently require manufacturers or contractors to name them as additional insureds, extending products liability protection to the supply chain
CGL vs. Professional Liability — the boundary between products liability (CGL) and professional liability (E&O) matters for technology companies and service businesses whose "product" is partially a service
Construction Industry Insurance Guide — completed operations exposure, the construction-specific analog to products liability, and how it is structured in contractor placements

How Insurance Brokers Use Products Liability in Practice

Products liability analysis starts at the application stage: what does the business make, distribute, import, or sell, and to whom? A consumer goods distributor faces different exposure than a B2B software vendor, and both face different exposure than a food manufacturer. The key questions are: (1) does the current CGL aggregate realistically cover plausible products claims? (2) are any products excluded or restricted by the CGL carrier? and (3) does the client have contractual obligations — distributor agreements, retailer indemnification clauses — that require specific products liability limits?

For manufacturing accounts, brokers should request copies of the most significant distributor or retailer agreements and confirm that the CGL's contractual liability coverage applies to the indemnification provisions in those agreements. Missing this step is a common gap: a client may be contractually obligated to indemnify a large retailer and assume the retailer's strict liability exposure, but if the indemnification clause does not qualify as an insured contract under the CGL, coverage does not follow.