The Maricopa County Board of Supervisors Formal and Informal meetings are open to the public and will proceed under ARS 38-431 et.al. For questions regarding the application process for Maricopa County, please call the Clerk of the Board's Office at: 602-506-3766 or send an email.Find and contact local Meeting Venues in Maricopa, AZ with pricing and availability for your meeting event. Great for meeting planning! Purchase A Domain Name or See Numbers 3, 4, and 5 Below 3. The Industrial Development Authority of the County of Maricopa meets the second Tuesday of each month (unless otherwise noted in the Annual Meeting Notice). Manage the organization of special events from concept through completion, including planning, coordinating, designing, marketing, financing and managing risk. MAG provides regional planning and policy decisions in areas of transportation, air quality, water quality, and human services for Maricopa County. The first step is to complete an electronic Request for Consulting (eRFC). Join us for our annual business meeting on August 14th at am.