{"abstract":"Previously, the ozone monitoring season in Region 4 was twelve months in Florida; March--November in Georgia, Alabama, and Mississippi; and April--October in North Carolina, South Carolina, Tennessee, and Kentucky. Based on review of ozone monitoring data, Region 4 has determined that the appropriate ozone monitoring ozone season should be April 1-October 31 for all Region 4 states except Florida. Florida will continue to have a twelve month monitoring season.","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/1997/02/13/97-3520.html","cfr_references":[{"chapter":null,"citation_url":null,"part":58,"title":40}],"citation":"62 FR 6728","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"March 17, 1997.","disposition_notes":null,"docket_ids":["FRL-5683-4"],"dockets":[],"document_number":"97-3520","effective_on":"1997-03-17","end_page":6729,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":null,"html_url":"https://www.federalregister.gov/documents/1997/02/13/97-3520/modification-of-the-ozone-monitoring-season-alabama-georgia-and-mississippi","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/97-3520?publication_date=1997-02-13","mods_url":"https://www.govinfo.gov/metadata/granule/FR-1997-02-13/97-3520/mods.xml","not_received_for_publication":null,"page_length":2,"page_views":{"count":20,"last_updated":"2026-07-28 02:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-1997-02-13/pdf/97-3520.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"1997-02-13","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/1997/02/13/97-3520.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"checked_regulationsdotgov_at":"2011-09-21T00:14:45Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":6728,"subtype":null,"title":"Modification of the Ozone Monitoring Season; Alabama, Georgia, and Mississippi","toc_doc":null,"toc_subject":null,"topics":[],"type":"Rule","volume":62}