Emergency Communications System ORS 403.500 Definitions for ORS 403 Text Annotations As used in ORS 403.500 (Definitions for ORS 403) to 403.542 (Contracts with United States): (1)“County” means the county in which all or a portion of the district is located. (2)“County board” means county court or board of county commissioners of the county. (3)“District” means a radio and data district formed under ORS 403.500 (Definitions for ORS 403) to 403.542 (Contracts with United States). (4)“District board” means the governing body of a district. [2009 c.584 §1]