Release of Draft Policy Assessment for the Reconsideration of 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 40 CFR Part 50 [EPA-HQ-OAR-2018-0279; FRL-9545-04-OAR] AGENCY: Environmental Protection Agency (EPA). ACTION: Draft policy assessment; notice of availability. SUMMARY: On or about March 1, 2023, the Environmental Protection Agency (EPA) is making available to the public a revised draft document titled, Policy Assessment for the Reconsideration of the Ozone National Ambient Air Quality Standards, External Review Draft Version 2 (Draft PA). This draft document was prepared as a part of the current reconsideration of the 2020 final decision on the national ambient air quality standards (NAAQS) for ozone (O 3 ). When final, the PA is intended to “bridge the gap” between the scientific and technical information assessed in the 2020 Integrated Science Assessment for Ozone and Related Photochemical Oxidants (2020 ISA), as well as any air quality, exposure and risk analyses available in the reconsideration, and the judgments required of the Administrator. 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: Comments must be received on or before April 14, 2023. ADDRESSES: You may send comments on the draft PA, identified by Docket ID No. EPA-HQ-OAR-2018-0279, by any of the following methods: Federal eRulemaking Portal: https://www.regulations.gov/​ (our preferred method). Follow the online instructions for submitting comments. M…