In Sunbeam Corp. v. Liberty Mut. Ins. Co., 781 A.2d 1189 (Pa. 2001), the Pennsylvania Supreme Court adopted a strong application of regulatory estoppel. The question in Sunbeam was whether insurers doing business in Pennsylvania must be bound by representations made to the Pennsylvania Insurance Department by the "insurance industry." Specifically, the Supreme Court held that insurers could not argue that a specific pollution exclusion provision of a standard CGL policy meant something different from what the industry represented it meant to the Pennsylvania Insurance Department.