Arizona Environment - General regulations & environmental compliance analysis

Arizona Environment - General: What you need to know

Overview of Arizona's Environmental Rules


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In Arizona, the counterpart to the U.S. Environmental Protection Agency (EPA) is the Arizona Department of Environmental Quality (ADEQ). ADEQ is responsible for protecting Arizona's land, water, and air from pollution. EPA has delegated to Arizona the authority to administer permit programs to regulate air emissions, water, and hazardous wastes.

The Arizona Division of Occupational Safety and Health (ADOSH) has federal authority to administer workplace safety and health rules in both the private and public sectors.


Arizona's air program is shaped by its state implementation plan (SIP), which sets forth basic strategies for implementation, maintenance, and enforcement of the National Ambient Air Quality Standards (NAAQS). As mandated by the federal Clean Air Act (CAA), each state must adopt and submit a SIP to EPA for approval. Arizona's SIP was officially submitted to EPA in January 1972 and is frequently amended to comply with the 1990 CAA amendments. The SIP focuses on permitting, requirements for nonattainment areas, hazardous air pollutants, and numerous other air-related requirements.

Maricopa, Pima, and Pinal counties have been granted authority to oversee the administration and enforcement of local, state, and federal air quality regulations within their respective jurisdictions. Therefore, ADEQ's Air Quality Division is responsible for administering and enforcing Arizona's air pollution rules throughout the state, and the Maricopa County Environmental Services Department, Pima County Air Quality Control District, and Pinal County Air Quality Control District are responsible for administering and enforcing the air quality rules within ...

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