{"abstract":"The Environmental Protection Agency (EPA or Agency) is finalizing an extension to the compliance dates applicable to certain entities subject to the regulation of methylene chloride promulgated under the Toxic Substances Control Act (TSCA). Specifically, EPA is finalizing an 18-month extension of the Workplace Chemical Protection Program (WCPP) and associated recordkeeping compliance dates for industrial or commercial laboratories that are not owned or operated by Federal agencies or contractors acting on behalf of the Federal government. Under this final rule, all non-Federal laboratories will share the same compliance dates with Federal and Federally contracted laboratories. EPA is finalizing an extension of the compliance dates for associated laboratory activities detailed in this final rule to avoid disruption of important functions of non-Federal laboratories such as the use of environmental monitoring methods needed for cleanup sites and wastewater treatment, as well as activities associated with university laboratories or law enforcement laboratories.","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/2025/11/13/2025-19881.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"751","title":40}],"citation":"90 FR 50894","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This final rule is effective on December 15, 2025.","disposition_notes":null,"docket_ids":["EPA-HQ-OPPT-2020-0465","FRL-8155.1-02-OCSPP"],"dockets":[{"supporting_documents":[{"title":"The Problem of Social Cost","document_id":"EPA-HQ-OPPT-2020-0465-0439"},{"title":"Costs of Cleaning","document_id":"EPA-HQ-OPPT-2020-0465-0438"},{"title":"OSHA Standard Interpretations TWA and PEL","document_id":"EPA-HQ-OPPT-2020-0465-0430"},{"title":"Documentation of EO 12866 Review; Methylene Chloride; Rulemaking Under the Toxic Substances Control Act (TSCA); Final Rule (RIN 2070-AK70)","document_id":"EPA-HQ-OPPT-2020-0465-0426"},{"title":"Final Regulatory Flexibility Analysis for Methylene Chloride under TSCA Section 6(a)","document_id":"EPA-HQ-OPPT-2020-0465-0422"},{"title":"A-4 Circular: Regulatory Plan Costs and Benefits Table for the Final Regulation of Methylene Chloride under TSCA Section 6(a)","document_id":"EPA-HQ-OPPT-2020-0465-0421"},{"title":"Aerospace Industries Association Memo with Attachment","document_id":"EPA-HQ-OPPT-2020-0465-0419"},{"title":"The Cost of Process Conversion","document_id":"EPA-HQ-OPPT-2020-0465-0416"},{"title":"Information Technology Industry Council Memo","document_id":"EPA-HQ-OPPT-2020-0465-0405"},{"title":"DSM-Firmenich Memo","document_id":"EPA-HQ-OPPT-2020-0465-0404"}],"agency_name":"EPA","documents":[{"comment_count":null,"comment_start_date":null,"updated_at":"2025-11-13T11:55:49.566-05:00","comment_url":"https://www.regulations.gov/commenton/EPA-HQ-OPPT-2020-0465-0487","allow_late_comments":false,"id":"EPA-HQ-OPPT-2020-0465-0487","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":261,"id":"EPA-HQ-OPPT-2020-0465","title":"Methylene Chloride; Rulemaking under TSCA section 6(a)"}],"document_number":"2025-19881","effective_on":"2025-12-15","end_page":50900,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2025/11/13/2025-19881.xml","html_url":"https://www.federalregister.gov/documents/2025/11/13/2025-19881/methylene-chloride-regulation-under-the-toxic-substances-control-act-tsca-compliance-date-extension","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2025-19881?publication_date=2025-11-13","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2025-11-13/2025-19881/mods.xml","not_received_for_publication":null,"page_length":7,"page_views":{"count":4217,"last_updated":"2026-05-29 16:15:09 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2025-11-13/pdf/2025-19881.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2025-19881.pdf?1762955113","publication_date":"2025-11-13","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2025/11/13/2025-19881.txt","regulation_id_number_info":{"2070-AL28":{"issue":"202504","html_url":"https://www.federalregister.gov/regulations/2070-AL28/methylene-chloride-regulation-under-the-toxic-substances-control-act-tsca-compliance-date-extension-","title":"Methylene Chloride; Regulation under the Toxic Substances Control Act (TSCA); Compliance Date Extension for Industrial and Commercial Use as a Laboratory Chemical","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202504&RIN=2070-AL28&operation=OPERATION_EXPORT_XML","priority_category":"Substantive, Nonsignificant"}},"regulation_id_numbers":["2070-AL28"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"The Problem of Social Cost","document_id":"EPA-HQ-OPPT-2020-0465-0439"},{"title":"Costs of Cleaning","document_id":"EPA-HQ-OPPT-2020-0465-0438"},{"title":"OSHA Standard Interpretations TWA and PEL","document_id":"EPA-HQ-OPPT-2020-0465-0430"},{"title":"Documentation of EO 12866 Review; Methylene Chloride; Rulemaking Under the Toxic Substances Control Act (TSCA); Final Rule (RIN 2070-AK70)","document_id":"EPA-HQ-OPPT-2020-0465-0426"},{"title":"Final Regulatory Flexibility Analysis for Methylene Chloride under TSCA Section 6(a)","document_id":"EPA-HQ-OPPT-2020-0465-0422"},{"title":"A-4 Circular: Regulatory Plan Costs and Benefits Table for the Final Regulation of Methylene Chloride under TSCA Section 6(a)","document_id":"EPA-HQ-OPPT-2020-0465-0421"},{"title":"Aerospace Industries Association Memo with Attachment","document_id":"EPA-HQ-OPPT-2020-0465-0419"},{"title":"The Cost of Process Conversion","document_id":"EPA-HQ-OPPT-2020-0465-0416"},{"title":"Information Technology Industry Council Memo","document_id":"EPA-HQ-OPPT-2020-0465-0405"},{"title":"DSM-Firmenich Memo","document_id":"EPA-HQ-OPPT-2020-0465-0404"}],"comments_count":0,"agency_id":"EPA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=EPA-HQ-OPPT-2020-0465","supporting_documents_count":261,"docket_id":"EPA-HQ-OPPT-2020-0465","document_id":"EPA-HQ-OPPT-2020-0465-0487","regulation_id_number":null,"title":"Methylene Chloride; Rulemaking under TSCA section 6(a)","checked_regulationsdotgov_at":"2025-11-14T20:55:10Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":50894,"subtype":null,"title":"Methylene Chloride; Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extension","toc_doc":"Methylene Chloride; Compliance Date Extension","toc_subject":"Regulation under the Toxic Substances Control Act","topics":["Chemicals","Environmental protection","Hazardous substances"],"type":"Rule","volume":90}