Where a municipal ordinance specified that owners who occupied their single-family homes did not need to get a contracting license prior to conducting repairs or improvements, the ordinance did not impact interstate commerce and violate the dormant commerce clause.The 7th U.S. Circuit Court of Appeals affirmed a decision by U.S. District Judge James T. Moody, Northern District of Indiana.Christopher Regan lives in Cook County. He owns real property in Hammond, Ind., that he leases or rents to others. The Northwest Indiana …