RulesofCivilProcedure.com Civil Procedure · Every State

2-2101.Definitions.

Article II. Civil Practice · Part 21. Product Liability · Last amended 1995 · Last verified July 20, 2026

In one sentenceSection 2-2101 defines the terms used throughout Part 21's product liability provisions, including harm, manufacturer, product seller, and clear and convincing evidence, though the Illinois Supreme Court later declared the 1995 act that created this Part unconstitutional.

Full Text of 735 ILCS 5/2-2101

Text size

For purposes of this Part, the terms listed have the following meanings: "Clear and convincing evidence" means that measure or degree
of proof that will produce in the mind of the trier of fact a high degree of certainty as to the truth of the allegations sought to be established. This evidence requires a greater degree of persuasion than is necessary to meet the preponderance of the evidence standard.
"Harm" means (i) damage to property other than the product itself; (ii) personal physical injury, illness, or death; (iii) mental anguish or emotional harm to the extent recognized by applicable law; (iv) any loss of consortium or services; or (v) other loss deriving from any type of harm described in item (i), (ii), (iii), or (iv).
"Manufacturer" means (i) any person who is engaged in a business to design or formulate and to produce, create, make, or construct any product or component part of a product; (ii) a product seller with respect to all component parts of a product or a component part of a product that is created or affected when, before placing the product in the stream of commerce, the product seller designs or formulates and produces, creates, makes, or constructs an aspect of a product or a component part of a product made by another; or (iii) any product seller not described in (ii) that holds itself out as a manufacturer to the user of the product.
"Product liability action" means a civil action brought on any theory against a manufacturer or product seller for harm caused by a product.
"Product seller" means a person who, in the course of a business conducted for that purpose, sells, distributes, leases, installs, prepares, blends, packages, labels, markets, repairs, maintains, or otherwise is involved in placing a product in the stream of commerce.

Plain-English Summary

Section 2-2101 supplies the vocabulary for the rest of Part 21. "Clear and convincing evidence" is defined as proof strong enough to produce a high degree of certainty in the fact-finder's mind, requiring more persuasion than the ordinary preponderance-of-the-evidence standard. "Harm" covers property damage other than to the product itself, personal physical injury, illness or death, mental anguish or emotional harm to the extent the law recognizes it, loss of consortium or services, and any other loss deriving from those categories.

"Manufacturer" gets three alternative definitions: someone who designs or formulates and produces, creates, makes, or constructs a product or component; a product seller who designs, formulates, or otherwise creates or affects a product or component before it enters commerce; or any other product seller that holds itself out as a manufacturer to the product's user. "Product liability action" is defined broadly as any civil action, on any theory, against a manufacturer or product seller for harm caused by a product. "Product seller" covers anyone who sells, distributes, leases, installs, prepares, blends, packages, labels, markets, repairs, maintains, or is otherwise involved in placing a product in the stream of commerce.

These definitions control how the rest of Part 21 — the presumptions and defenses in Sections 2-2102 through 2-2109 — operates, since each of those sections builds on the terms fixed here. Part 21 was added by Public Act 89-7, the Civil Justice Reform Amendments of 1995, and the Illinois Supreme Court held that broader amendatory act unconstitutional in its entirety, finding key damages-cap and liability provisions invalid and inseverable from the rest of the Act, not long after it took effect. Anyone relying on Part 21's definitions or the sections that follow should confirm the current, court-tested status of these provisions before treating them as controlling law in a specific case.

Frequently Asked Questions

What does "clear and convincing evidence" mean under this section?

A measure of proof that produces a high degree of certainty in the fact-finder's mind about the truth of the allegations, requiring more persuasion than the preponderance-of-the-evidence standard used in most civil cases.

Who counts as a "manufacturer" under this Part?

Someone who designs or formulates and produces, creates, makes, or constructs a product or component; a product seller who creates or affects a component before the product reaches the market; or a product seller that holds itself out as a manufacturer to the user, even if it didn't make the product.

What counts as "harm" in a product liability action under this Part?

Property damage other than to the product itself, personal physical injury, illness or death, mental anguish or emotional harm recognized under applicable law, loss of consortium or services, and any other loss that flows from one of those categories.

What is a "product seller," and how is it different from a manufacturer?

A product seller is anyone in the business of selling, distributing, leasing, installing, preparing, blending, packaging, labeling, marketing, repairing, maintaining, or otherwise placing a product in commerce. A manufacturer is a narrower category within that group — one that designs, makes, or holds itself out as making the product.

Is Part 21 of the Code still valid law?

Part 21 was added by Public Act 89-7 in 1995, and the Illinois Supreme Court held that broader amendatory act unconstitutional in its entirety, finding key provisions invalid and inseverable from the rest of the Act. Confirm the current enforceability of any Part 21 section before relying on it.

Amendment History

(Source: P.A. 89-7, eff. 3-9-95.)

Source & verification. Section text and amendment history are reproduced verbatim from the Illinois Compiled Statutes, published by the Illinois Compiled Statutes, Illinois General Assembly / Legislative Reference Bureau. Last verified July 20, 2026. · Official source
Also known as: illinois product liability definitionsmanufacturer definition illinois product liabilityclear and convincing evidence illinoisproduct seller definition illinoisillinois product liability act 1995