{"abstract":"The Environmental Protection Agency (EPA) is promulgating a rule directing state and tribal air agencies (air agencies) to provide data to characterize current air quality in areas with large sources of sulfur dioxide (SO<INF>2</INF>) emissions to identify maximum 1-hour SO<INF>2</INF> concentrations in ambient air. The final rule establishes minimum criteria for identifying the emissions sources and associated areas for which air agencies are required to characterize SO<INF>2</INF> air quality. Air agencies remain free to also characterize air quality in additional areas beyond those required to be characterized under the rule. The final rule also sets forth a process and timetables by which air agencies must characterize air quality through ambient monitoring and/or air quality modeling techniques and submit such data to the EPA. The EPA has issued separate non-binding draft technical assistance documents recommending how air agencies should conduct such monitoring or modeling. The air quality data developed by air agencies pursuant to this rule may be used by the EPA in future actions to evaluate areas' air quality under the 2010 1- hour SO<INF>2</INF> National Ambient Air Quality Standard (NAAQS), including area designations and redesignations, as appropriate.","action":"Final rule.","agencies":[{"raw_name":"ENVIRONMENTAL PROTECTION AGENCY","name":"Environmental Protection Agency","id":145,"url":"https://www.federalregister.gov/agencies/environmental-protection-agency","json_url":"https://www.federalregister.gov/api/v1/agencies/145","parent_id":null,"slug":"environmental-protection-agency"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2015/08/21/2015-20367.html","cfr_references":[{"chapter":null,"citation_url":null,"part":51,"title":40}],"citation":"80 FR 51052","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This final rule is effective on September 21, 2015.","disposition_notes":null,"docket_ids":["EPA-HQ-OAR-2013-0711","FRL-9928-18-OAR"],"dockets":[],"document_number":"2015-20367","effective_on":"2015-09-21","end_page":51088,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2015/08/21/2015-20367.xml","html_url":"https://www.federalregister.gov/documents/2015/08/21/2015-20367/data-requirements-rule-for-the-2010-1-hour-sulfur-dioxide-so2-primary-national-ambient-air-quality","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2015-20367?publication_date=2015-08-21","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2015-08-21/2015-20367/mods.xml","not_received_for_publication":null,"page_length":37,"page_views":{"count":1611,"last_updated":"2026-07-25 20:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2015-08-21/pdf/2015-20367.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2015-20367.pdf?1440074717","publication_date":"2015-08-21","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2015/08/21/2015-20367.txt","regulation_id_number_info":{"2060-AR19":{"issue":"201504","html_url":"https://www.federalregister.gov/regulations/2060-AR19/data-requirements-rule-for-the-one-hour-sulfur-dioxide-primary-national-ambient-air-quality-standard","title":"Data Requirements Rule for the One-Hour Sulfur Dioxide Primary National Ambient Air Quality Standard (NAAQS)","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=201504&RIN=2060-AR19&operation=OPERATION_EXPORT_XML","priority_category":"Other Significant"}},"regulation_id_numbers":["2060-AR19"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"LT 2 SO2 Data Requirements Rule ICR 8 14 19","document_id":"EPA-HQ-OAR-2013-0711-0147"},{"title":"LT 1 SO2 Data Requirements EPA Burden ICR Renewal 8 14 19","document_id":"EPA-HQ-OAR-2013-0711-0146"},{"title":"LT 3 2495t03 lw 9 23 19","document_id":"EPA-HQ-OAR-2013-0711-0144"},{"title":"ML and AZ e-mails on OMB Comments on DRR no2 7 31 15","document_id":"EPA-HQ-OAR-2013-0711-0137"},{"title":"MB and AZ e-mails on the DRR no2 lw 7 31 15","document_id":"EPA-HQ-OAR-2013-0711-0133"},{"title":"MB to AZ e-mails on DRR no1 lw 7 31 15","document_id":"EPA-HQ-OAR-2013-0711-0132"},{"title":"SO2 Data Requirements Rule Final rule ICR","document_id":"EPA-HQ-OAR-2013-0711-0130"},{"title":"EO12866 DRR 2060 AR19 Final PreambleRule 20150723 lw 7 23 15","document_id":"EPA-HQ-OAR-2013-0711-0128"},{"title":"Summary of Interagency Comments Under EO12866_13563 EPA Data Requirement 6 24 15","document_id":"EPA-HQ-OAR-2013-0711-0126"},{"title":"SO2 Data Requirements Rule ICR SS","document_id":"EPA-HQ-OAR-2013-0711-0124"}],"comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-HQ-OAR-2013-0711","supporting_documents_count":57,"docket_id":"EPA-HQ-OAR-2013-0711","regulation_id_number":null,"title":"Data Requirements Rule for the 1-Hour Sulfur Dioxide (SO2) Primary National Ambient Air Quality Standard (NAAQS)","checked_regulationsdotgov_at":"2015-09-10T06:00:10Z"},"regulations_dot_gov_url":null,"significant":true,"signing_date":null,"start_page":51052,"subtype":null,"title":"Data Requirements Rule for the 2010 1-Hour Sulfur Dioxide (SO2) Primary National Ambient Air Quality Standard (NAAQS)","toc_doc":"Data Requirements Rule for the 2010 1-Hour Sulfur Dioxide Primary National Ambient Air Quality Standard","toc_subject":null,"topics":["Air pollution control","Environmental protection","Intergovernmental relations","Sulfur oxides"],"type":"Rule","volume":80}