Abstract: A system and method of supporting the provision of a wide variety of regulated services and products via a local and/or global communications network, is disclosed. Regulatory rules engines, which contains protocols on each jurisdiction's legal requirements applicable to the service/product transaction, implements protocols for making choice of law analyses, preemption analyses and hierarchical ranking of laws by stringency, in order to facilitate automated, real-time, multi-jurisdictional transaction processing over the network without violating the laws of any applicable jurisdiction.