The State Hazardous Air Pollutant (HAP) Program regulates emissions of HAPs from new sources and modifications to existing sources. The following sources are potentially subject to the program:

1. All sources that have the potential to emit 10 tons per year of a single HAP or 25 tons per year of a combination.
2. Sources that have the potential to emit 1 ton per year of a single HAP or 2.5 tons per year of a combination and that belong to certain specific industrial categories. A full list of the categories appears at the bottom of this page.

The following documents should be of assistance in determining whether your project is subject to the state HAPs program and, if so, in achieving compliance:

• ADEQ Guidance on How to Comply with the Arizona State Hazardous Air Pollutant Program
• Notice of Final Rulemaking (NFRM) for the State HAPs Program (This document is identical to the NFRM published on the Secretary of State's web page , except that the HAPs rulemaking has been separated from the other final rules published on that date, and the bookmarks have been cleaned up.)
• State HAPs Program Presentation (Provides a helpful introduction to the program.)

If you have any questions regarding the State HAPs Program, please contact Steve Burr at (602) 771-4251.

The source categories that are potentially subject to the State HAPs Program if their potential emissions exceed 1 ton per year of a single HAP or 2.5 tons per year of a combination are as follows:

1 Not elsewhere classified

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