{"abstract":"The EPA is taking final action to fully approve the Clean Air Act Operating Permits Program of the Commonwealth of Massachusetts. Massachusetts submitted its program for the purpose of complying with federal Clean Air Act requirements for a State to develop a program to issue operating permits to all major stationary and certain other sources of air pollution. EPA granted interim approval to Massachusetts' operating permit program on February 2, 1996.","action":"Direct 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/2001/09/28/01-24064.html","cfr_references":[{"chapter":null,"citation_url":null,"part":70,"title":40}],"citation":"66 FR 49541","comment_url":null,"comments_close_on":"2001-10-29","correction_of":null,"corrections":[],"dates":"This direct final rule is effective on November 27, 2001 without further notice, unless EPA receives relevant adverse comment by October 29, 2001. If EPA receives relevant adverse comments, EPA will publish a timely withdrawal of the direct final rule in the Federal Register and inform the public that the rule will not take effect.","disposition_notes":null,"docket_ids":["AD-FRL-7065-9"],"dockets":[],"document_number":"01-24064","effective_on":"2001-11-27","end_page":49544,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2001/09/28/01-24064.xml","html_url":"https://www.federalregister.gov/documents/2001/09/28/01-24064/clean-air-act-final-approval-of-operating-permits-program-commonwealth-of-massachusetts","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/01-24064?publication_date=2001-09-28","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2001-09-28/01-24064/mods.xml","not_received_for_publication":null,"page_length":4,"page_views":{"count":179,"last_updated":"2026-09-21 10:15:07 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2001-09-28/pdf/01-24064.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2001-09-28","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2001/09/28/01-24064.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":49541,"subtype":null,"title":"Clean Air Act Final Approval of Operating Permits Program; Commonwealth of Massachusetts","toc_doc":"Massachusetts","toc_subject":"Air pollution control:","topics":[],"type":"Rule","volume":66}