{"abstract":"The Environmental Protection Agency (EPA or Agency) is announcing the availability of the final risk evaluation under the Toxic Substances Control Act (TSCA) for diisodecyl phthalate (DIDP). The purpose of risk evaluations under TSCA is to determine whether a chemical substance presents an unreasonable risk of injury to health or the environment, without consideration of costs or non-risk factors, including unreasonable risk to potentially exposed or susceptible subpopulations identified as relevant to the risk evaluation by EPA, under the conditions of use. EPA used the best available science to prepare this final risk evaluation and determined, based on the weight of scientific evidence, that DIDP poses unreasonable risk to human health. Under TSCA, EPA must initiate risk management actions to address the unreasonable risk.","action":"Notice.","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/2025/01/06/2024-31280.html","cfr_references":[],"citation":"90 FR 638","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":null,"disposition_notes":null,"docket_ids":["EPA-HQ-OPPT-2018-0435"],"dockets":[{"supporting_documents":[{"title":"32. Nontechnical Summary of the TSCA Risk Evaluation for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0090"},{"title":"28. Supplemental Information on Modeling Results in the General Population Exposure Assessment for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0086"},{"title":"26. Supplemental Information on EPI Suite Modeling Results in the Fate Assessment for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0084"},{"title":"24. Fish Ingestion Risk Calculator for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0082"},{"title":"16. Environmental Media and General Population Exposure for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0074"},{"title":"12. Data Extraction Information for Environmental Hazard and Human Health Hazard Animal Toxicology and Epidemiology for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0070"},{"title":"08. Data Quality Evaluation Information for General Population, Consumer, and Environmental Exposure for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0066"},{"title":"05. Data Quality Evaluation and Data Extraction Information for Environmental Release and Occupational Exposure for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0063"},{"title":"01. Risk Evaluation for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0059"},{"title":"Meeting with American Chemistry Council High Phthalate Panel and EPA to Discuss DIDP/DINP Assessment Charge Questions","document_id":"EPA-HQ-OPPT-2018-0435-0057"}],"agency_name":"EPA","documents":[{"comment_count":null,"comment_start_date":null,"updated_at":"2025-01-06T09:00:25.521-05:00","comment_url":"https://www.regulations.gov/commenton/EPA-HQ-OPPT-2018-0435-0058","allow_late_comments":false,"id":"EPA-HQ-OPPT-2018-0435-0058","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":63,"id":"EPA-HQ-OPPT-2018-0435","title":"Di-isodecyl phthalate (DIDP) (1,2-Benzene- dicarboxylic acid, 1,2- diisodecyl ester); TSCA Review"}],"document_number":"2024-31280","effective_on":null,"end_page":640,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2025/01/06/2024-31280.xml","html_url":"https://www.federalregister.gov/documents/2025/01/06/2024-31280/diisodecyl-phthalate-didp-risk-evaluation-under-the-toxic-substances-control-act-tsca-notice-of","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2024-31280?publication_date=2025-01-06","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2025-01-06/2024-31280/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":520,"last_updated":"2026-04-04 14:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2025-01-06/pdf/2024-31280.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2024-31280.pdf?1735911916","publication_date":"2025-01-06","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2025/01/06/2024-31280.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[{"title":"32. Nontechnical Summary of the TSCA Risk Evaluation for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0090"},{"title":"28. Supplemental Information on Modeling Results in the General Population Exposure Assessment for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0086"},{"title":"26. Supplemental Information on EPI Suite Modeling Results in the Fate Assessment for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0084"},{"title":"24. Fish Ingestion Risk Calculator for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0082"},{"title":"16. Environmental Media and General Population Exposure for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0074"},{"title":"12. Data Extraction Information for Environmental Hazard and Human Health Hazard Animal Toxicology and Epidemiology for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0070"},{"title":"08. Data Quality Evaluation Information for General Population, Consumer, and Environmental Exposure for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0066"},{"title":"05. Data Quality Evaluation and Data Extraction Information for Environmental Release and Occupational Exposure for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0063"},{"title":"01. Risk Evaluation for Diisodecyl Phthalate (DIDP)","document_id":"EPA-HQ-OPPT-2018-0435-0059"},{"title":"Meeting with American Chemistry Council High Phthalate Panel and EPA to Discuss DIDP/DINP Assessment Charge Questions","document_id":"EPA-HQ-OPPT-2018-0435-0057"}],"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-2018-0435","supporting_documents_count":63,"docket_id":"EPA-HQ-OPPT-2018-0435","document_id":"EPA-HQ-OPPT-2018-0435-0058","regulation_id_number":null,"title":"Di-isodecyl phthalate (DIDP) (1,2-Benzene- dicarboxylic acid, 1,2- diisodecyl ester); TSCA Review","checked_regulationsdotgov_at":"2025-01-07T13:00:12Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":638,"subtype":null,"title":"Diisodecyl Phthalate (DIDP); Risk Evaluation Under the Toxic Substances Control Act (TSCA); Notice of Availability","toc_doc":"Diisodecyl Phthalate","toc_subject":"Risk Evaluation under the Toxic Substances Control Act","topics":[],"type":"Notice","volume":90}