Ozone (O3) Air Quality Standards - Documents from Review Completed in 2020 (including documents related to reconsideration)
Federal Register Notices
-RULEMAKING NOTICES / PUBLIC HEARINGS
- Review of the O3 NAAQS, Final Decision - December 31, 2020 (signed December 23, 2020)
- Review of the O3 NAAQS, Proposed Decision and Notice of Public Hearings - August 14, 2020 (signed July 13, 2020)
-Pre-Rulemaking Documents / Availability and Opportunities for Public Comment
- Notice of Availability – Draft Policy Assessment for the Reconsideration, v2 - March 15, 2023
- Notice of Availability – Draft Policy Assessment for the Reconsideration - April 29, 2022
- Request for Nominations: CASAC Ozone Panel - November 15, 2021
- Notice of Availability – Policy Assessment - May 22, 2020
- Notice of Availability – Integrated Science Assessment - April 20, 2020
- Notice of Availability – Draft Policy Assessment - November 1, 2019
- Notice of Availability – Draft Integrated Science Assessment - September 26, 2019
- Notice of Availability - Integrated Review Plan for the O3 NAAQS - August 22, 2019
- Notice of Availability and Public Comment Period - Draft Integrated Review Plan for the O3 NAAQS - November 2, 2018
- Notice of Webinar Workshop to Review Initial Draft Materials for the Integrated Science Assessment - October 23, 2018
- Call for Scientific and Policy-relevant Information for the Integrated Science Assessment and Integrated Review Plan - June 26, 2018
-Public Meetings / Workshops
- Notice of CASAC Teleconference on May 23 and May 24, 2023 - March 24, 2023
- Notice of CASAC Public Meetings on March 2, 29 and 30, 2023 - February 13, 2023
- Notice of CASAC Teleconference on November 14 and 15, 2022 - October 5, 2022
- Notice of CASAC Teleconference on August 29 and September 12, 14 and 16, 2022 - July 12, 2022
- Notice of CASAC Teleconference on April 29 and June 8, 10, 13 and 17, 2022 - April 4, 2022
- Notice of CASAC Teleconference on February 11-12, 2020- January 27, 2020
- Notice of CASAC Public Meeting on December 3-6, 2019 -November 1, 2019
- Notice of CASAC Teleconference on November 29, 2018- November 6, 2018
Planning Documents
- Integrated Review Plan for the Ozone NAAQS Review (PDF)( 165 pp, 2.9 Mb, August 2019)
- Integrated Review Plan for the Ozone NAAQS Review, External Review Draft (PDF)( 157 pp, 2.7 Mb, October 2018)
Integrated Science Assessments
- Integrated Science Assessment for Ozone and Related Photochemical Oxidants, April 2020
- Integrated Science Assessment for Ozone and Related Photochemical Oxidants, External Review Draft, September 2019
Policy Assessments
- Draft Policy Assessment for the Reconsideration of the O3 NAAQS, v2 (pdf) (30.65 MB, March 2023, EPA-452/P-23-002)
- Draft Policy Assessment for the Reconsideration of O3 NAAQS (pdf) (24.54 MB, April 2022, EPA-452/D-22-002)
- Policy Assessment for the Review of the O3 NAAQS (pdf) (19.75 MB, May 2020, EPA-452/R-20-001 )
- Policy Assessment for the Review of the O3 NAAQS, External Review Draft (pdf) (71.95 MB, October 2019, EPA-452/P-19-002)
Other Technical Documents
CASAC Documents
Response to Comments Document
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