{"abstract":"EPA is taking direct final action to reinstate the maximum observed constituent concentrations for several listed hazardous wastes that were inadvertently removed from the regulations by a November 8, 2000 final rule.","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/2012/02/22/2012-4060.html","cfr_references":[{"chapter":null,"citation_url":null,"part":302,"title":40}],"citation":"77 FR 10387","comment_url":null,"comments_close_on":"2012-03-23","correction_of":null,"corrections":[],"dates":"This rule is effective on April 23, 2012 without further notice, unless EPA receives adverse comment by March 23, 2012. If EPA receives adverse comment, we will publish a timely withdrawal in the Federal Register informing the public that the rule will not take effect.","disposition_notes":null,"docket_ids":["EPA-HQ-SFUND-2011-0965","FRL-9635-9"],"dockets":[],"document_number":"2012-4060","effective_on":"2012-04-23","end_page":10390,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2012/02/22/2012-4060.xml","html_url":"https://www.federalregister.gov/documents/2012/02/22/2012-4060/designation-of-hazardous-substances-designation-reportable-quantities-and-notification","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2012-4060?publication_date=2012-02-22","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2012-02-22/2012-4060/mods.xml","not_received_for_publication":null,"page_length":4,"page_views":{"count":319,"last_updated":"2026-08-24 00:15:06 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2012-02-22/pdf/2012-4060.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2012-04060.pdf?1329862741","publication_date":"2012-02-22","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2012/02/22/2012-4060.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"checked_regulationsdotgov_at":"2012-03-13T08:04:57Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":10387,"subtype":null,"title":"Designation of Hazardous Substances; Designation, Reportable Quantities, and Notification","toc_doc":"Designation, Reportable Quantities, and Notification","toc_subject":"Designation of Hazardous Substances:","topics":["Air pollution control","Chemicals","Environmental protection","Hazardous substances","Hazardous waste","Intergovernmental relations","Natural resources","Reporting and recordkeeping requirements","Superfund","Water pollution control","Water supply"],"type":"Rule","volume":77}