{"abstract":"This rule establishes initial air quality designations for most areas in the United States, including areas of Indian country, for the 2008 primary and secondary national ambient air quality standards (NAAQS) for ozone. The designations for several counties in Illinois, Indiana, and Wisconsin that the EPA is considering for inclusion in the Chicago nonattainment area will be designated in a subsequent action, no later than May 31, 2012. Areas designated as nonattainment are also being classified by operation of law according to the severity of their air quality problems. The classification categories are Marginal, Moderate, Serious, Severe, and Extreme. The EPA is establishing the air quality thresholds that define the classifications in a separate rule that the EPA is signing and publishing in the Federal Register on the same schedule as these designations. In accordance with that separate rule, six nonattainment areas in California are being reclassified to a higher classification.","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/2012/05/21/2012-11618.html","cfr_references":[{"chapter":null,"citation_url":null,"part":81,"title":40}],"citation":"77 FR 30088","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"The effective date of this rule is July 20, 2012.","disposition_notes":null,"docket_ids":["EPA-HQ-OAR-2008-0476","FRL-9668-2"],"dockets":[],"document_number":"2012-11618","effective_on":"2012-07-20","end_page":30160,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2012/05/21/2012-11618.xml","html_url":"https://www.federalregister.gov/documents/2012/05/21/2012-11618/air-quality-designations-for-the-2008-ozone-national-ambient-air-quality-standards","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2012-11618?publication_date=2012-05-21","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2012-05-21/2012-11618/mods.xml","not_received_for_publication":null,"page_length":73,"page_views":{"count":2834,"last_updated":"2026-08-24 20:15:14 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2012-05-21/pdf/2012-11618.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2012-11618.pdf?1337346323","publication_date":"2012-05-21","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2012/05/21/2012-11618.txt","regulation_id_number_info":{"2060-AP37":{"issue":"201110","html_url":"https://www.federalregister.gov/regulations/2060-AP37/air-quality-designations-and-classifications-for-the-2008-ozone-national-ambient-air-quality-standar","title":"Air Quality Designations and Classifications for the 2008 Ozone National Ambient Air Quality Standards","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=201110&RIN=2060-AP37&operation=OPERATION_EXPORT_XML","priority_category":"Substantive, Nonsignificant"}},"regulation_id_numbers":["2060-AP37"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Presentation by Representatives from Matagorda County, TX to USEPA Headquarters on April 9 and 11, 2012","document_id":"EPA-HQ-OAR-2008-0476-0763"},{"title":"Presentation by representatives from Matagorda County to EPA staff at Region 6 on March 21, 2012","document_id":"EPA-HQ-OAR-2008-0476-0762"},{"title":"Letter to Lisa Jackson, Administrator, USEPA from M. Stagg, Waller Lansden Dortch and Davis, LLP on behalf of Anderson County, Blount County and Knox County, Tennessee RE: Submitting July 20, 2012 Petition for Reconsideration of the USEPA's Final Rule, Ai","document_id":"EPA-HQ-OAR-2008-0476-0761"},{"title":"Letter to Lisa Jackson, Administrator, USEPA from M. Stagg, Waller Lansden Dortch and Davis, LLP on behalf of Shelby County, Tennessee  RE: Submitting July 20, 2012 Petition for Reconsideration of the USEPA's Final Rule, Air Quality Designations for the 2","document_id":"EPA-HQ-OAR-2008-0476-0760"},{"title":"Letter to Lisa Jackson, Administrator, USEPA from T. Cannon, Executive Director, Texas Pipeline Association and J. Applekamp, Director, Gas Processors Association RE: Submitting July 20, 2012  Petition for Reconsideration of the USEPA's Final Rule, Air Qu","document_id":"EPA-HQ-OAR-2008-0476-0759"},{"title":"Corrected Enclosure to Letter for Docket Entry 0726 - Letter from L. Jackson, Administrator, EPA to J. Turner, Director, Georgia Department of Natural Resourses Responding to Petition for Reconsideration of the Final Rule, Air Quality Designations for the","document_id":"EPA-HQ-OAR-2008-0476-0757"},{"title":"Response Letter Dated December 14, 2012 From L. Jackson, Administrator, U.S. EPA to T. Fisher, Executive Director, Mississippi Department of Environmental Quality Regarding Filed Petition for Reconsideration on Behalf of the State of Mississippi on the EP","document_id":"EPA-HQ-OAR-2008-0476-0756"},{"title":"Response Letter Dated December 14, 2012 From L. Jackson, Administrator, U.S. EPA to W. Smith, Texas House of Representatives Regarding Filed Letter of Support of Wise County's Petition for Reconsideration on the EPA's Final Rule, Air Quality Designations ","document_id":"EPA-HQ-OAR-2008-0476-0755"},{"title":"Letter from W. Myers, Executive Director, Bridgeport Economic Development Corporation to L. Jackson, Administrator, USEPA, Submitting July 17, 2012 Petition for Reconsideration of the US EPA's Final Rule, Air Quality Designations for the 2008 Ozone Nation","document_id":"EPA-HQ-OAR-2008-0476-0754"},{"title":"Response Letter Dated December 14, 2012 from L. Jackson, Administrator, USEPA to Z. Covar, Executive Director, Texas Commission on Environmental Quality Regarding Filed Petition for Reconsideration on Behalf of TCEQ on the USEPA's Final Rule, Air Quality ","document_id":"EPA-HQ-OAR-2008-0476-0753"}],"comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-HQ-OAR-2008-0476","supporting_documents_count":533,"docket_id":"EPA-HQ-OAR-2008-0476","regulation_id_number":null,"title":"Air Quality Designations and Classifications for the 2008 Ozone Standards ","checked_regulationsdotgov_at":"2012-06-10T06:00:18Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":30088,"subtype":null,"title":"Air Quality Designations for the 2008 Ozone National Ambient Air Quality Standards","toc_doc":"Air Quality Designations for 2008 Ozone National Ambient Air Quality Standards","toc_subject":null,"topics":["Air pollution control","Environmental protection","Wilderness areas"],"type":"Rule","volume":77}