Environmental Protection Agency
On or about January 12, 2024, the Environmental Protection Agency (EPA) will make available the document, Policy Assessment for the Review of the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen, Oxides of Sulfur and Particulate Matter (PA, EPA- 452/R-24-003). This document was prepared as part of the current review of the secondary national ambient air quality standards (NAAQS) for Oxides of Nitrogen (NO<INF>X</INF>), Oxides of Sulfur (SO<INF>X</INF>), and Particulate Matter (PM). 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 secondary NO<INF>2,</INF> SO<INF>2</INF> and PM NAAQS. The secondary NAAQS for oxides of nitrogen, oxides of sulfur, and particulate matter are set to protect the public welfare from known or anticipated effects of these pollutants in the ambient air.
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-2014-0128; FRL-5788-04-OAR] AGENCY: Environmental Protection Agency (EPA). ACTION: Notice of availability. SUMMARY: On or about January 12, 2024, the Environmental Protection Agency (EPA) will make available the document, Policy Assessment for the Review of the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen, Oxides of Sulfur and Particulate Matter (PA, EPA-452/R-24-003). This document was prepared as part of the current review of the secondary national ambient air quality standards (NAAQS) for Oxides of Nitrogen (NO X ), Oxides of Sulfur (SO X ), and Particulate Matter (PM). 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 secondary NO 2, SO 2 and PM NAAQS. The secondary NAAQS for oxides of nitrogen, oxides of sulfur, and particulate matter are set to protect the public welfare from known or anticipated effects of these pollutants in the ambient air. DATES: This document will be available on or about January 12, 2024. ADDRESSES: This document will be available on the EPA's website at https://www.epa.gov/​naaqs/​nitrogen-dioxide-no2-and-sulfur-dioxide-so2-secondary-air-quality-standards . The document will be accessible under “Policy Assessments” from the current review. FOR FURTHER INFORMATION CONTACT: Ginger Tennant,…
Other Federal Register documents from the same docket.
Review of the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen, Oxides of Sulfur, and Particulate Matter
Public Hearing for the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen, Oxides of Sulfur, and Particulate Matter
Review of the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen, Oxides of Sulfur, and Particulate Matter
Release of the 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
Final Integrated Science Assessment for Oxides of Nitrogen, Oxides of Sulfur, and Particulate Matter-Ecological Criteria
Citation: 89 FR 2223
