{"abstract":"The Drug Enforcement Administration is finalizing the control of propionyl chloride as a list I chemical under the Controlled Substances Act (CSA). Propionyl chloride is used in the illicit manufacture of the controlled substances fentanyl, fentanyl analogues, and fentanyl-related substances, and it is important to the manufacture of these substances. This final rule subjects handlers of propionyl chloride to the chemical regulatory provisions of the CSA and its implementing regulations.","action":"Final rule.","agencies":[{"raw_name":"DEPARTMENT OF JUSTICE","name":"Justice Department","id":268,"url":"https://www.federalregister.gov/agencies/justice-department","json_url":"https://www.federalregister.gov/api/v1/agencies/268","parent_id":null,"slug":"justice-department"},{"raw_name":"Drug Enforcement Administration","name":"Drug Enforcement Administration","id":116,"url":"https://www.federalregister.gov/agencies/drug-enforcement-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/116","parent_id":268,"slug":"drug-enforcement-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2026/03/10/2026-04657.html","cfr_references":[{"chapter":null,"citation_url":null,"part":1310,"title":21}],"citation":"91 FR 11450","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This rulemaking will become effective on April 9, 2026. Persons seeking registration must apply before April 9, 2026 to continue their business pending final action by DEA on their application.","disposition_notes":null,"docket_ids":["Docket No. DEA-1189"],"dockets":[{"supporting_documents":[],"agency_name":"DEA","documents":[{"comment_count":0,"comment_start_date":"2026-03-10","updated_at":"2026-04-03T14:57:04.390-04:00","comment_url":"https://www.regulations.gov/commenton/DEA-2023-0138-0010","allow_late_comments":false,"id":"DEA-2023-0138-0010","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":0,"id":"DEA-2023-0138","title":"Designation of Propionyl Chloride as a List I Chemical (DEA1189)"}],"document_number":"2026-04657","effective_on":"2026-04-09","end_page":11456,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/03/10/2026-04657.xml","html_url":"https://www.federalregister.gov/documents/2026/03/10/2026-04657/designation-of-propionyl-chloride-as-a-list-i-chemical","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-04657?publication_date=2026-03-10","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-03-10/2026-04657/mods.xml","not_received_for_publication":null,"page_length":7,"page_views":{"count":436,"last_updated":"2026-04-04 18:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-03-10/pdf/2026-04657.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-04657.pdf?1773060313","publication_date":"2026-03-10","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/03/10/2026-04657.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[],"comments_count":0,"agency_id":"DEA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=DEA-2023-0138","supporting_documents_count":0,"docket_id":"DEA-2023-0138","document_id":"DEA-2023-0138-0010","regulation_id_number":null,"title":"Designation of Propionyl Chloride as a List I Chemical (DEA1189)","checked_regulationsdotgov_at":"2026-04-04T20:55:04Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":11450,"subtype":null,"title":"Designation of Propionyl Chloride as a List I Chemical","toc_doc":"Designation of Propionyl Chloride as a List I Chemical","toc_subject":null,"topics":["Administrative practice and procedure","Drug traffic control","Reporting and recordkeeping requirements"],"type":"Rule","volume":91}