{"abstract":"Pursuant to Agency procedures for approving minor State Implementation Plan (SIP) revisions, this action identifies a plan revision submitted by Pennsylvania on behalf of Allegheny County which EPA approved and incorporates the relevant material into the Code of Federal Regulations. This revision deletes the exemption of blast furnace slips from Allegheny County's visible emissions regulations. This action lists the SIP revision that EPA has approved and incorporates the relevant material into the code of Federal Regulations. This action is being taken under section 110 of the Clean Air Act.","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/1996/10/22/96-27001.html","cfr_references":[{"chapter":null,"citation_url":null,"part":52,"title":40}],"citation":"61 FR 54736","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This action is effective October 22, 1996.","disposition_notes":null,"docket_ids":["PA097-4030","FRL-5635-4"],"dockets":[],"document_number":"96-27001","effective_on":"1996-10-22","end_page":54737,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":null,"html_url":"https://www.federalregister.gov/documents/1996/10/22/96-27001/approval-and-promulgation-of-air-quality-implementation-plans-pennsylvania-revised-visible-emissions","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/96-27001?publication_date=1996-10-22","mods_url":"https://www.govinfo.gov/metadata/granule/FR-1996-10-22/96-27001/mods.xml","not_received_for_publication":null,"page_length":2,"page_views":{"count":9,"last_updated":"2026-04-04 10:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-1996-10-22/pdf/96-27001.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"1996-10-22","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/1996/10/22/96-27001.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"checked_regulationsdotgov_at":"2011-09-21T10:29:43Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":54736,"subtype":null,"title":"Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Revised Visible Emissions Rules for Allegheny County Pertaining to Blast Furnace Slips","toc_doc":null,"toc_subject":null,"topics":[],"type":"Rule","volume":61}