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NAAQS Review Cycle: 2023-Present, Topic: Nitrogen Oxides Primary NAAQS
YearReport NumberReport TitleSigned DateAgency Response
2024EPA-CASAC-24-001Consultation on the EPA’s Integrated Review Plan for the Primary National Ambient Air Quality Standards for Oxides of Nitrogen. Volume 2: Planning for the Review and the Integrated Science Assessment (March 2024) (PDF)04/24/2024Agency Response to EPA-CASAC-24-001 (PDF)
NAAQS Review Cycle: 2021-Present, Topic: Lead
YearReport NumberReport TitleSigned DateAgency Response
2022EPA-CASAC-22-003Consultation on the EPA’s Integrated Review Plan for the National Ambient Air Quality Standards for Lead. Volume 2: Planning for the Review and the Integrated Science Assessment (March 2022) (PDF)04/22/2022Agency Response to EPA-CASAC-22-003 (PDF)
2023EPA-CASAC-23-004Consultation on the EPA’s Integrated Review Plan for the National Ambient Air Quality Standards for Lead. Volume 3: Planning Document for Quantitative Exposure/Risk Analyses (May 2023) (PDF)09/18/2023Agency Response to EPA-CASAC-23-004 (PDF)
2023EPA-CASAC-23-003CASAC Review of the EPA’s Integrated Science Assessment (ISA) for Lead (External Review Draft – March 2023) (PDF)09/18/2023Agency Response to EPA-CASAC-23-003 (PDF)
NAAQS Review Cycle: 2021-Present, Topic: Ozone
YearReport NumberReport TitleSigned DateAgency Response
2022EPA-CASAC-22-004CASAC Review Process for the National Ambient Air Quality Standards for Ozone (PDF)06/15/2022Agency Response to EPA-CASAC-22-004 (PDF)
2023EPA-CASAC-23-001CASAC Review of the EPA’s Integrated Science Assessment (ISA) for Ozone and Related Photochemical Oxidants (Final Report - April 2020) (PDF)11/22/2022Agency Response to EPA-CASAC-23-001 (PDF)
2023EPA-CASAC-23-002CASAC Review of the EPA’s Policy Assessment (PA) for the Reconsideration of the Ozone National Ambient Air Quality Standards (External Review Draft Version 2) (PDF)06/09/2023Agency Response to EPA-CASAC-23-002 (PDF)
NAAQS Review Cycle: 2021-Present, Topic: Particulate Matter
YearReport NumberReport TitleSigned DateAgency Response
2022EPA-CASAC-22-002CASAC Review of the EPA’s Policy Assessment for the Reconsideration of the National Ambient Air Quality Standards for Particulate Matter (External Review Draft – October 2021) (PDF)03/18/2022Agency Response to EPA-CASAC-22-002 (PDF)
2022EPA-CASAC-22-001CASAC Review of the EPA’s Supplement to the 2019 Integrated Science Assessment for Particulate Matter (External Review Draft – October 2021) (PDF)03/18/2022Agency Response to EPA-CASAC-22-001 (PDF)
NAAQS Review Cycle: 2018-2020, Topic: Ozone
YearReport NumberReport TitleSigned DateAgency Response
2019EPA-CASAC-19-001Consultation on the EPA's Integrated Review Plan for the Review of the Ozone National Ambient Air Quality Standards (External Review Draft & October 2018) (PDF)12/10/2018Agency Response to EPA-CASAC-19-001 (PDF)
2020EPA-CASAC-20-002CASAC Review of the EPA's Integrated Science Assessment for Ozone and Related Photochemical Oxidants (External Review Draft - September 2019) (PDF)02/19/2020Agency Response to EPA-CASAC-20-002 (PDF)
2020EPA-CASAC-20-003CASAC Review of the EPA's Policy Assessment for the Review of the Ozone National Ambient Air Quality Standards (External Review Draft & October 2019) (PDF)02/19/2020Agency Response to EPA-CASAC-20-003 (PDF)
NAAQS Review Cycle: 2015-2020, Topic: Particulate Matter
YearReport NumberReport TitleSigned DateAgency Response
2016EPA-CASAC-16-003CASAC Review of the EPA's Integrated Review Plan for the National Ambient Air Quality Standards for Particulate Matter (External Review Draft & April 2016) (PDF)08/31/2016Agency Response to EPA-CASAC-16-003 (PDF)
2019EPA-CASAC-19-002CASAC Review of the EPA's Integrated Science Assessment for Particulate Matter (External Review Draft & October 2018) (PDF)04/11/2019Agency Response to EPA-CASAC-19-002 (PDF)
2020EPA-CASAC-20-001CASAC Review of the EPA's Policy Assessment for the Review of the National Ambient Air Quality Standards for Particulate Matter (External Review Draft & September 2019) (PDF)12/16/2019Agency Response to EPA-CASAC-20-001 (PDF)
NAAQS Review Cycle: 2013-Present, Topic: Nitrogen Oxides and Sulfur Oxides Secondary NAAQS
YearReport NumberReport TitleSigned DateAgency Response
2023EPA-CASAC-23-005