These regulations constitute the legal basis for control of air pollution sources in Maricopa County, Arizona. They are adopted to implement the policy set forth in Title 49 of the Arizona Revised Statutes and to fulfill the State's responsibilities under the Federal Clean Air Act and its amendments to provide a legally enforceable State Implementation Plan for the attainment and maintenance of the National Ambient Air Quality Standards. This printing of the regulations incorporates changes adopted by the Maricopa County Board of Supervisors through September 2013.

These regulations constitute the legal basis for control of air pollution sources in Maricopa County, Arizona. They are adopted to implement the policy set forth in Title 49 of the Arizona Revised Statutes and to fulfill the State's responsibilities under the Federal Clean Air Act and its amendments to provide a legally enforceable State Implementation Plan for the attainment and maintenance of the National Ambient Air Quality Standards. This printing of the regulations incorporates changes adopted by the Maricopa County Board of Supervisors through January 2011.

In step with other organizations, the Greater Phoenix Economic Council (the Valley’s regional public-private economic development organization) published a comprehensive 10-year economic development strategy that codified its change in direction to quality economic development in aerospace, bio-industry, advanced business and financial services, technology, and software. In early 2004, the Governor’s Council on Innovation and Technology issued Building Arizona’s Knowledge-Based Economy with scores of recommendations on venture capital, higher education, collaboration, workforce development, and other topics. Separately, each of these items would have been notable. Taken together, they demonstrate a strong commitment to the growth of a knowledge economy and to the multifaceted approaches needed to develop it.