The Permitting Division is responsible for implementing industrial source control programs as specifically required by the federal Clean Air Act (CAA) and Arizona statute. The Permitting Division processes applications for dust-generating activities, open burning, an Authority to Operate (ATO) (under a General permit), Non-Title V permits, and Title V permits as well as asbestos notifications, subcontractor registrations, and vapor recovery decals. Other permit related functions within this division include source impact dispersion modeling; source emissions testing acceptance and oversight; continuous monitoring system performance verification; and permit engineering evaluations of sources. These activities ensure that emission sources are either complying with standards or are on a schedule for compliance by a specific date.
The Air Quality department regulates all asbestos renovation and demolition activity within Maricopa County. This covers all demolitions and regulated renovation activities containing friable asbestos-containing material greater than or equal to 160 square feet, 260 linear feet, or 35 cubic feet. This is determined by an Asbestos Hazard Emergency Response Act (AHERA) certified asbestos building inspector prior to demolition or renovation.
When performing air dispersion modeling, representative background concentrations must be added to each pollutant source modeled. Background concentrations are intended to account for other pollution sources not explicitly included in the modeling, such as natural sources and other non-modeled or unidentified sources of air pollution.
The federal Clean Air Act and Maricopa County Air Pollution Control Regulations Rule 241 require the use of Best Available Control Technology for sources that are either new sources or modifications to existing sources of air pollution that exceed certain thresholds.
Information on dust sources, dust control measures, and dust control training classes.
The Emission Reduction Credit (ERC) program creates a consistent method for sources to generate ERCs for future use in offsetting emissions in nonattainment areas throughout Maricopa County.
The General Permit program offers an alternative to regular permits and simplifies the process for authorizing operation of qualified sources.
The Air Quality Department's Non-Title V (NTV) Permitting program issues permits for sources such as gasoline plants, heating units, internal combustion engines, and surface coating operations that are below the Title V emission thresholds and that are not considered exempt or insignificant under Rule 200. The permits include conditions that regulate source-specific emission limits, monitoring, operational requirements, record keeping, and reporting.
Performance tests are conducted according to established procedures in order to quantify emissions and provide an objective means for determining compliance with established emission limits.
Learn more about air quality permits and view our Planning Area Maps.
View our permit intake office address, hours of operation, and public parking information.
Find more information about our online permitting portals and available applications for download.
View reports containing weekly permit applications received, monthly permits issued, enforcement summary reports, active orders of abatement and more.
A subcontractor who engages in dust-generating operations at a site that requires a dust control permit, and is not the permit holder for that site, must have a valid subcontractor registration.
According to the Maricopa County Air Pollution Control Regulations Rule 352, all gasoline delivery vessels must be designed and maintained to be vapor tight and leak free. To comply with this requirement, a gasoline delivery vessel must pass the Maricopa County Pressure Test before delivering or unloading gasoline and must pass the test each year thereafter.
Title V is a federal program designed to standardize air quality permits and the permitting process for major sources of emissions across the country.