Summary

EPA is taking final action to determine that the Phoenix-Mesa ozone nonattainment area (“Phoenix NAA”), which is classified as “Moderate” for the 2008 ozone National Ambient Air Quality Standards (NAAQS or “standards”), attained the NAAQS by the Moderate area attainment date of July 20, 2018. This determination is based on complete, quality-assured, and certified data for 2015-2017. This final action is necessary to fulfill the EPA's statutory obligation to determine whether ozone nonattainment areas attained the NAAQS by the applicable attainment date.

Action

Final rule.

Addresses

EPA has established a docket for this action under Docket ID No. EPA-R09-OAR-2018-0821. All documents in the docket are listed on the www.regulations.gov website. Although listed in the index, some information is not publicly available, e.g., Confidential Business Information or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the internet and will be publicly available only in hard copy form. Publicly available docket materials are available through www.regulations.gov, or please contact the person identified in the FOR FURTHER INFORMATION CONTACT section for additional availability information.

For Further Information Contact

Nancy Levin (levin.nancy@epa.gov), EPA Region IX, 75 Hawthorne St., San Francisco, CA 94105. By phone: (415) 972-3848