Release of Policy Assessment for the Ozone National Ambient Air Quality Standards

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency [EPA-HQ-OAR-2018-0279; FRL-10009-30-OAR] AGENCY: Environmental Protection Agency (EPA). ACTION: Notice of availability. SUMMARY: On or about May 29, 2020, the Environmental Protection Agency (EPA) will make available the document, Policy Assessment for the Ozone National Ambient Air Quality Standards (PA, EPA-452/R-20-001). This document was prepared as part of the current review of the national ambient air quality standards (NAAQS) for photochemical oxidants including ozone (O 3 ). The PA serves to “bridge the gap” between the currently available scientific and technical information and the judgments required of the Administrator in determining whether to retain or revise the existing O 3 NAAQS. The primary and secondary O 3 NAAQS are set to protect the public health and the public welfare from O 3 and other photochemical oxidants in ambient air. DATES: This document will be available on or about May 29, 2020. ADDRESSES: This document will be available on the EPA's website at https://www.epa.gov/​naaqs/​ozone-o3-air-quality-standards . The document will be accessible under “Policy Assessments” from the current review. FOR FURTHER INFORMATION CONTACT: Dr. Deirdre L. Murphy, Office of Air Quality Planning and Standards, (Mail Code C504-06), U.S. Environmental Protection Agency, Research Triangle Park, NC 27711; telephone number: 919-541-0729, fax number: 919-541-0237; or email: murphy.deirdre@epa.gov . SUPPLEM…