{"abstract":"The Administrator of the Drug Enforcement Administration is issuing this temporary scheduling order to extend the temporary schedule I status of MDMB-4en-PINACA. The schedule I status of MDMB- 4en-PINACA is in effect through December 12, 2025. This temporary order will extend the temporary scheduling of MDMB-4en-PINACA for one year, or until the permanent scheduling action for this substance is completed, whichever occurs first. As a result of this order, the regulatory controls and administrative, civil, and criminal sanctions applicable to schedule I controlled substances will continue to be imposed on persons who handle (manufacture, distribute, reverse distribute, import, export, engage in research, conduct instructional activities or chemical analysis with, or possess) or propose to handle MDMB-4en-PINACA.","action":"Temporary scheduling order; extension.","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/2025/12/11/2025-22540.html","cfr_references":[{"chapter":null,"citation_url":null,"part":1308,"title":21}],"citation":"90 FR 57356","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This temporary scheduling order, which extends schedule I control of MDMB-4en-PINACA covered by an order (88 FR 86040, December 12, 2023), is effective December 12, 2025, and expires on December 12, 2026. If DEA publishes a final rule making this scheduling action permanent, this order will expire on the effective date of that rule, if the effective date is earlier than December 12, 2026.","disposition_notes":null,"docket_ids":["Docket No. DEA-1356"],"dockets":[{"supporting_documents":[{"title":"SIGNED - OASH to DEA Ltr 8FA MDMB-PINACA.VAS","document_id":"DEA-2025-0555-0004"},{"title":"8FA MDMB-4en-PINACA","document_id":"DEA-2025-0555-0003"},{"title":"MDMB-4en-PINACA 8F Oct 2025","document_id":"DEA-2025-0555-0002"}],"agency_name":"DEA","documents":[{"comment_count":0,"comment_start_date":"2025-12-11","updated_at":"2025-12-11T09:57:38.721-05:00","comment_url":"https://www.regulations.gov/commenton/DEA-2025-0555-0055","allow_late_comments":false,"id":"DEA-2025-0555-0055","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":3,"id":"DEA-2025-0555","title":"Schedules of Controlled Substances: Placement of MDMB-4-PINACA in Schedule I (DEA1356)"}],"document_number":"2025-22540","effective_on":"2025-12-12","end_page":57358,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2025/12/11/2025-22540.xml","html_url":"https://www.federalregister.gov/documents/2025/12/11/2025-22540/schedules-of-controlled-substances-extension-of-temporary-placement-of-mdmb-4en-pinaca-in-schedule-i","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2025-22540?publication_date=2025-12-11","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2025-12-11/2025-22540/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":542,"last_updated":"2026-04-04 00:15:02 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2025-12-11/pdf/2025-22540.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2025-22540.pdf?1765374327","publication_date":"2025-12-11","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2025/12/11/2025-22540.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"SIGNED - OASH to DEA Ltr 8FA MDMB-PINACA.VAS","document_id":"DEA-2025-0555-0004"},{"title":"8FA MDMB-4en-PINACA","document_id":"DEA-2025-0555-0003"},{"title":"MDMB-4en-PINACA 8F Oct 2025","document_id":"DEA-2025-0555-0002"}],"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-2025-0555","supporting_documents_count":3,"docket_id":"DEA-2025-0555","document_id":"DEA-2025-0555-0055","regulation_id_number":null,"title":"Schedules of Controlled Substances: Placement of MDMB-4-PINACA in Schedule I (DEA1356)","checked_regulationsdotgov_at":"2025-12-12T18:55:05Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":57356,"subtype":null,"title":"Schedules of Controlled Substances: Extension of Temporary Placement of MDMB-4en-PINACA in Schedule I of the Controlled Substances Act","toc_doc":"Extension of Temporary Placement of MDMB-4en-PINACA in Schedule I","toc_subject":"Schedules of Controlled Substances","topics":[],"type":"Rule","volume":90}