WTO notification · TBT
United StatesUpdated: check whether it is now adopted or in force
Official title
Butyl Benzyl Phthalate (BBP); Diisobutyl Phthalate (DIBP); Draft Risk Evaluations Under the Toxic Substances Control Act (TSCA); Notice of Availability and Request for Comment
The United States issued an addendum on 8 January 2026 to the earlier TBT notification G/TBT/N/USA/2230. Addenda often report that a measure was adopted, changed, postponed or withdrawn. The measure was first notified on 7 August 2025. The comment period closed on 6 October 2025.
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Butyl Benzyl Phthalate (BBP) and Diisobutyl Phthalate (DIBP); Environmental protection; Production in the chemical industry; Products of the chemical industry
The comment period closed on 6 October 2025. You can still raise concerns about the measure with your country's WTO TBT enquiry point, quoting the document symbol G/TBT/N/USA/2230/Add.1; it can take them up with the United States.
Find your country's enquiry point on WTO ePing (opens in a new tab)Latest notice (G/TBT/N/USA/2230/Add.1, 8 January 2026)
Butyl Benzyl Phthalate (BBP), Dibutyl Phthalate (DBP), Dicyclohexyl Phthalate (DCHP), Diethylhexyl Phthalate (DEHP), and Diisobutyl Phthalate (DIBP); Risk Evaluation under the Toxic Substances Control Act (TSCA); Notice of Availability
The Environmental Protection Agency (EPA or Agency) is announcing the availability of the final risk evaluations under the Toxic Substances Control Act (TSCA) for Butyl Benzyl Phthalate (BBP) (CARSN 85-68-7), Dibutyl Phthalate (DBP) (CASRN 84-74-2), Dicyclohexyl Phthalate (DCHP) (CASRN 84-61-7), Diethylhexyl Phthalate (DEHP) (CASRN 117-81-7), and Diisobutyl Phthalate (DIBP) (CASRN 84-69-5). The purpose of conducting 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 these final risk evaluations, and determined, based on the weight of scientific evidence, that BBP, DBP, DCHP, DEHP, and DIBP pose unreasonable risk to human health and/or the environment driven by specific conditions of use. Under TSCA, EPA must initiate risk management actions to address the unreasonable risk. 91 Federal Register (FR) 373, 6 January 2026: This notice of availability and a previous notice of availability notified as G/TBT/N/USA/2230 are identified by Docket Numbers EPA-HQ-OPPT-2018-0501 and EPA-HQ-OPPT-2018-0434. The Docket Folders are available on Regulations.gov at and and provide access to primary and supporting documents as well as comments…
Notice of Availability and Request for Comment - The Environmental Protection Agency (EPA or Agency) is announcing the availability of and seeking public comment on the draft risk evaluations under the Toxic Substances Control Act (TSCA) for Butyl Benzyl Phthalate (BBP) (CARSN 85-68-7) and Diisobutyl Phthalate (DIBP) (CASRN 84-69-5). 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 under the conditions of use, including unreasonable risk to potentially exposed or susceptible subpopulations identified as relevant to the risk evaluation by EPA, and without consideration of costs or non-risk factors. EPA used the best available science to prepare this draft risk evaluation and to preliminarily determine, based on the weight of scientific evidence, that BBP and DIBP pose unreasonable risk to health and the environment driven primarily by certain conditions of use analyzed in the draft risk evaluations.
Every notice about this measure published here, newest first. Each one is the notifying member's own text.
AddendumG/TBT/N/USA/2230/Add.1
Butyl Benzyl Phthalate (BBP), Dibutyl Phthalate (DBP), Dicyclohexyl Phthalate (DCHP), Diethylhexyl Phthalate (DEHP), and Diisobutyl Phthalate (DIBP); Risk Evaluation under the Toxic Substances Control Act (TSCA); Notice of Availability
The Environmental Protection Agency (EPA or Agency) is announcing the availability of the final risk evaluations under the Toxic Substances Control Act (TSCA) for Butyl Benzyl Phthalate (BBP) (CARSN 85-68-7), Dibutyl Phthalate (DBP) (CASRN 84-74-2), Dicyclohexyl Phthalate (DCHP) (CASRN 84-61-7), Diethylhexyl Phthalate (DEHP) (CASRN 117-81-7), and Diisobutyl Phthalate (DIBP) (CASRN 84-69-5). The purpose of conducting 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 these final risk evaluations, and determined, based on the weight of scientific evidence, that BBP, DBP, DCHP, DEHP, and DIBP pose unreasonable risk to human health and/or the environment driven by specific conditions of use. Under TSCA, EPA must initiate risk management actions to address the unreasonable risk. 91 Federal Register (FR) 373, 6 January 2026: This notice of availability and a previous notice of availability notified as G/TBT/N/USA/2230 are identified by Docket Numbers EPA-HQ-OPPT-2018-0501 and EPA-HQ-OPPT-2018-0434. The Docket Folders are available on Regulations.gov at and and provide access to primary and supporting documents as well as comments…
Regular notificationG/TBT/N/USA/2230
Comment deadline: Closed on 6 October 2025
Butyl Benzyl Phthalate (BBP); Diisobutyl Phthalate (DIBP); Draft Risk Evaluations Under the Toxic Substances Control Act (TSCA); Notice of Availability and Request for Comment
Notice of Availability and Request for Comment - The Environmental Protection Agency (EPA or Agency) is announcing the availability of and seeking public comment on the draft risk evaluations under the Toxic Substances Control Act (TSCA) for Butyl Benzyl Phthalate (BBP) (CARSN 85-68-7) and Diisobutyl Phthalate (DIBP) (CASRN 84-69-5). 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 under the conditions of use, including unreasonable risk to potentially exposed or susceptible subpopulations identified as relevant to the risk evaluation by EPA, and without consideration of costs or non-risk factors. EPA used the best available science to prepare this draft risk evaluation and to preliminarily determine, based on the weight of scientific evidence, that BBP and DIBP pose unreasonable risk to health and the environment driven primarily by certain conditions of use analyzed in the draft risk evaluations.
Expodite writes its summary from the official record. The notification and the documents it notifies are on the WTO's own websites.
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