The Maricopa Association of Governments (MAG) is a Council of Governments (COG) that serves as the regional planning agency for the metropolitan Phoenix area.
MAG is the regional air quality planning agency and Metropolitan Planning Organization (MPO) for transportation for Maricopa County. This includes the Phoenix area and the neighboring urbanized area in Pinal County, containing the Town of Florence and City of Maricopa.
MAG provides regional planning and policy decisions in areas of transportation, air quality, water quality, and human services. MAG was formed in 1967 when local elected officials recognized the need for long range planning and policy development on a regional scale. They realized that many issues such as transportation and air quality affected residents beyond the borders of their individual jurisdictions.