MO SB1565

Amends Section 537.765, RSMo to expand the definition of "fault" in products liability claims from a limited list of six specific plaintiff behaviors to any actionable breach of legal duty, including negligence, assumption of risk, strict liability, breach of warranty, and product misuse, modification, or abuse

Eliminates joint liability in product liability claims, making each defendant's liability several only—each defendant pays only the damages proportional to their percentage of fault

Allows defendants to assert fault of any other person or entity (not just the plaintiff) as an affirmative defense in product liability claims, including strict liability claims

Requires the trier of fact to consider and apportion fault among all persons or entities who contributed to the harm, including nonparties who were not or could not have been named in the lawsuit

Maintains pure comparative fault doctrine where plaintiff's fault reduces but does not bar recovery of compensatory damages