About MAG

Contact Us

302 North 1st Avenue, Suite 300
Phoenix, Arizona 85003

Phone (602) 254-6300
FAX (602) 254-6490

MAG Email

Para ayuda en Español, por favor llame al (602) 452-5076.

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.

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:

  • Regional cooperation was encouraged by success of multi-city sewage system in the early 1960s.
  • The 1962 Federal Aid Highway Act required regional transportation planning, which resulted in the formation of the Valley Area Traffic and Transportation Area Study (VATTS) on March 12, 1965.
  • The 1965 Federal Housing Act Amendments and 1966 Metropolitan Development Act provided legal and financial impetus for a full-fledged regional agency.
  • MAG was formed in 1967 by concurrent resolutions from its member agencies to foster regional cooperation and to address regional problems.
  • VATTS was incorporated into MAG in 1967.
  • Executive Order 70-2 established six Planning Districts in Arizona in 1970.
  • MAG designated as the Metropolitan Planning Organization (MPO) by the governor in 1973.
  • MAG designated as the Water Quality Planning Agency by the governor in 1975.
  • MAG designated as the Lead Air Quality Planning Agency by the governor in 1978.
  • MAG designated as the Solid Waste Planning Agency in 1979.

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:

  • Provide a forum for discussion and study of regional problems of mutual interest to the governments in the region.
  • Ensure, through cooperation and the pooling of common resources, maximum efficiency and economy in governmental operations, which will provide every citizen with the utmost value for every dollar.
  • Identify and comprehensively plan for the solution of regional problems requiring multicity, town and county cooperation.
  • Facilitate agreements among the governmental units for specific projects or other interrelated developmental actions or for the adoption of common policies with respect to problems that are common to its members.
  • Attain the greatest degree of intergovernmental cooperation possible in order to prepare for future growth and development of the region.

About MAG

The Maricopa Association of Governments (MAG) is a Council of Governments (COG) that serves as the regional planning agency for the metropolitan Phoenix area.

Title VI

Title VI requires that no person in the United States of America shall, on the grounds of race, color, or national origin, be excluded from the participation in, be denied the benefits of, or be otherwise subjected to discrimination under any program or activity for which MAG receives federal financial assistance.

Get in Touch

  • Address: 302 N. 1st Ave., Suite 300
    Phoenix, Arizona 85003

  • Phone: (602) 254-6300

  • FAX: (602) 254-6490

  • Email: mag@azmag.gov