Sulfur Dioxide (SO2) Primary Air Quality Standards - Federal Register Notices from Current Review
Over the course of each NAAQS review, EPA publishes notices in the Federal Register for a variety of activities: the kick-off workshop and call for information, CASAC meetings, availability of pre-rulemaking documents and opportunities for comment on these documents, as well as proposed and final rulemaking decisions and public hearings on a proposed rulemaking decision.
Rulemaking Notices / Public Hearings
- Review of the Primary National Ambient Air Quality Standards for Sulfur Oxides, Final Decision (March18, 2019)
- Notice of Public Hearing and Extension of Public Comment Period on Proposed Decision (June 21, 2018)
- Review of the Primary National Ambient Air Quality Standards for Sulfur Oxides, Proposed Decision (June 8, 2018)
Pre-Rulemaking Documents / Availability and Opportunities for Public Comment
- Notice of Availability – Risk and Exposure Assessment and Policy Assessments (May 15, 2018)
- Notice of Availability - Integrated Science Assessment (December 12, 2017)
- Notice of Availability and Public Comment Period – Draft Risk and Exposure Assessment and Policy Assessments (September 19, 2017)
- Notice of Availability and Public Comment Period – Risk and Exposure Assessment Planning Document (pdf) (2 pp, 212 KB, February 22, 2017)
- Notice of Availability and Public Comment Period - Integrated Science Assessment: Second External Review Draft (pdf) (2 pp, 214 KB, December 9, 2016)
- Notice of Availability and Public Comment Period - Integrated Science Assessment: First External Review Draft (pdf) (2 pp, 214 KB, November 24, 2015)
- Notice of Availability – Integrated Review Plan for the Primary National Ambient Air Quality Standard for Sulfur Dioxide, Final (pdf) (2 pp, 218 KB, November 10, 2014)
- Notice of Availability and Public Comment Period - Draft Integrated Review Plan (pdf) (2 pp, 214 KB, March 12, 2014)
Public Meetings / Workshops
- Notice of CASAC Public Teleconference on April 20, 2018
- Notice of CASAC Public Meeting on September 18-19, 2017
- Notice of CASAC Public Teleconference on June 20, 2017
- Notice of CASAC Public Meeting on March 20-21, 2017 (pdf) (2 pp, 210 KB, February 23, 2017)
- Notice of CASAC Public Meeting on January 27-28, 2016 and Teleconference on April 6, 2016 (pdf) (2 pp, 192 KB, December 21, 2015)
- Notice of CASAC Teleconference on July 16, 2014 (pdf) (2 pp, 213 KB, June 18, 2014)
- Notice of CASAC Teleconference on June 11, 2014 (pdf) (2 pp, 214 KB, May 27, 2014)
- Notice of CASAC Teleconference on April 22, 2014 (pdf) (2 pp, 214 KB, March 25, 2014)
- Notice of Workshop on June 12-13, 2013 and Call for Information on Integrated Science Assessment for Oxides of Sulfur (pdf) (2 pp, 216 KB, May 10, 2013)
You may also be interested in other documents from the current sulfur dioxide primary NAAQS review.