Prohibits certain provisions in liability insurance policies.

S 557 prohibits New Jersey liability insurers from including clauses that deny coverage for claims based on similarities to unrelated prior incidents (e.g., denying coverage for a new medical malpractice claim because a similar past case existed). It directly affects insurers writing liability policies and policyholders who might otherwise face coverage denials over unrelated prior events. The bill bans specific "interrelated wrongful act" or "prior and pending proceeding" clauses that allow insurers to refuse payment solely because a claim resembles an unrelated prior situation. This applies to all liability insurance policies issued or renewed after the law takes effect. The bill aims to prevent unfair coverage denials based on unrelated historical claims.