{"abstract":"EPA is revising the format of 40 CFR part 52 for materials submitted by the state of Missouri that are incorporated by reference (IBR) into its State Implementation Plan (SIP). The regulations affected by this format change have all been previously submitted by the state agency and approved by EPA.","action":"Final rule; notice of administrative change.","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/1999/06/29/99-16097.html","cfr_references":[{"chapter":null,"citation_url":null,"part":52,"title":40}],"citation":"64 FR 34717","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This action is effective June 29, 1999.","disposition_notes":null,"docket_ids":["MO 065-1065","FRL-6364-3"],"dockets":[],"document_number":"99-16097","effective_on":"1999-06-29","end_page":34726,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":null,"html_url":"https://www.federalregister.gov/documents/1999/06/29/99-16097/approval-and-promulgation-of-air-quality-implementation-plans-revised-format-for-materials-being","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/99-16097?publication_date=1999-06-29","mods_url":"https://www.govinfo.gov/metadata/granule/FR-1999-06-29/99-16097/mods.xml","not_received_for_publication":null,"page_length":10,"page_views":{"count":30,"last_updated":"2026-10-23 20:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-1999-06-29/pdf/99-16097.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"1999-06-29","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/1999/06/29/99-16097.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"checked_regulationsdotgov_at":"2011-09-21T06:12:24Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":34717,"subtype":null,"title":"Approval and Promulgation of Air Quality Implementation Plans; Revised Format for Materials Being Incorporated by Reference for Missouri","toc_doc":null,"toc_subject":null,"topics":[],"type":"Rule","volume":64}