302 North 1st Avenue, Suite 300
Phoenix, Arizona 85003
Phone (602) 254-6300
FAX (602) 254-6490
Para ayuda en español, por favor llame al (602) 452-5029.
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. To view a list of our member agencies, click here.
MAG provides regional planning and policy decisions in areas of transportation, air quality, water quality, economic development, 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.
MAG was founded in the spirit of unity and cooperation. MAG members believe that they can solve common problems, take an active role in long range regional issues, and address concerns that affect all communities. You can contact one of MAG's staff members for additional information or click here to download our free general information booklet.
More information can be found in our frequently asked questions.
In Maricopa County, local government cooperation in the early 1960's resulted in the completion of the multi-city sewage treatment plant at 91st Avenue. This occurred prior to federal and state initiatives and incentives for regional planning and cooperation.
Changes in the Federal Aid Highway Act led to cooperative transportation planning with the creation of the Valley Area Traffic and Transportation Study (VATTS). Continuing federal government decentralization initiatives led to the establishment of federal regions. Their goals were bringing federal programs to the people and incorporating greater review of federal programs through the Intergovernmental Cooperation Act.
These changing federal policies that required more local planning and review, and the demonstrated success of previous regional efforts led local governments in Maricopa County to form MAG in 1967. It was designed to be a nonprofit corporation to act as the vehicle to address areas of common regional interest. At the first MAG meeting, the consensus of the Regional Council was that the areas of water, air pollution and solid waste disposal were of primary concern. It was also agreed that there was a need for the standardization of building materials and for public works specifications. In addition, the transportation planning efforts that began with VATTS were incorporated into the scope of MAG's work. Several key events in the early history of MAG are outlined below:
The MAG bylaws summarizes the organization:
"The Maricopa Association of Governments is based on the principle that cities, towns, counties, and Indian Communities, which are closest to the people, should exercise the basic initiative and leadership and should have the primary responsibility for addressing those local problems and needs which require action on an area-wide or regional basis."
MAG’s Articles of Incorporation state that the association was formed to do the following:
Download a printable PDF of this map