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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-23-005CASAC Review of the EPA’s Policy Assessment for the Review of the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen, Oxides of Sulfur and Particulate Matter (External Review Draft – May 2023) (PDF)09/27/2023Agency Response to EPA-CASAC-23-005 (PDF)
2020EPA-CASAC-20-004CASAC Review of the EPA's Integrated Science Assessment for Oxides of Nitrogen, Oxides of Sulfur, and Particulate Matter & Ecological Criteria (Second External Review Draft & June 2018) (PDF)05/05/2020Agency Response to EPA-CASAC-20-004 (PDF)
2016EPA-CASAC-16-001CASAC Review of the EPA's Draft Integrated Review Plan for the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen and Oxides of Sulfur (PDF)04/01/2016Agency Response to EPA-CASAC-16-001 (PDF)
2020EPA-CASAC-20-005Consultation on the EPA's Review of the Secondary Standards for Ecological Effects of Oxides of Nitrogen, Oxides of Sulfur, and Particulate Matter: Risk and Exposure Assessment Planning Document (August - 2018) (PDF)05/05/2020Agency Response to EPA-CASAC-20-005 (PDF)
2017EPA-CASAC-17-004CASAC Review of the EPA's Integrated Science Assessment for Oxides of Nitrogen, Oxides of Sulfur, and Particulate Matter & Ecological Criteria (First External Review Draft & February 2017) (PDF)09/28/2017Agency Response to EPA-CASAC-17-004 (PDF)
NAAQS Review Cycle: 2013-2018, Topic: Nitrogen Oxides Primary NAAQS
YearReport NumberReport TitleSigned DateAgency Response
2017EPA-CASAC-17-001CASAC Review of the EPA's Policy Assessment for the Review of the Primary National Ambient Air Quality Standards for Nitrogen Dioxide (External Review Draft & September 2016) (PDF)03/07/2017Agency Response to EPA-CASAC-17-001 (PDF)
2013EPA-CASAC-13-006Consultation on the EPA's Draft Plan for the Development of the Integrated Science Assessment for Nitrogen Oxides & Health Criteria (May 2013 Draft) (PDF)06/18/2013Agency Response to EPA-CASAC-13-006 (PDF)
2015EPA-CASAC-15-002CASAC Review of the EPA's Review of the Primary National Ambient Air Quality Standards for Nitrogen Dioxide: Risk and Exposure Assessment Planning Document (PDF)09/09/2015Agency Response to EPA-CASAC-15-002 (PDF)
2015EPA-CASAC-15-001CASAC Review of the EPA's Integrated Science Assessment for Oxides of Nitrogen & Health Criteria (Second External Review Draft & January 2015) (PDF)09/09/2015Agency Response to EPA-CASAC-15-001 (PDF)
2014EPA-CASAC-14-001CASAC Review of the EPA's Integrated Review Plan for the Primary National Ambient Air Quality Standards for Nitrogen Dioxide (External Review Draft) (PDF)06/10/2014Agency Response to EPA-CASAC-14-001 (PDF)
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