In several landmark cases the New Jersey Supreme Court redefined the parameters of the Workers' Compensation Act as it applies to occupational illness, scientific evidence, the standard of proof to determine permanency, apportionment of responsibility, exclusivity of remedy and off-premises liability. These areas of the law are also the focus of various New Jersey Appellate Division case decisions as well as several federal court rulings. Some of the decisions rendered by the Supreme Court were the most significant rulings in the history of workers' compensation case law.