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TSCA Work Plan: EPA Updates TSCA Work Plan for Chemical Assessments

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The Environmental Protection Agency (EPA) has updated its Toxic Substances Control Act (TSCA) Work Plan of chemicals for further assessment.[1]  EPA first released the TSCA Work Plan in early 2012 to help focus and direct the activities of its Existing Chemicals Program.[2]  The changes to the TSCA Work Plan for Chemical Assessments reflect updated industry data submitted to EPA through the Toxics Release Inventory (TRI) in 2011 and the TSCA Chemical Data Reporting (CDR) requirements in 2012, particularly data indicating the presence of many of these chemicals in consumer products.  In its announcement of the update, EPA stated that the 23 chemicals added to the TSCA Work Plan will not be considered for assessment until after 2017.


While overall the TSCA Work Plan has grown from 83 to 90 chemicals, a number of chemicals were removed from it by EPA’s update.  These include mercury and mercury compounds, which were deemed already well-characterized; quartz, for which potential exposures are regulated by the Occupational Safety and Health Administration; and benzo[a]pyrene, which will be evaluated as part of EPA’s assessment for creosote.  EPA also removed other chemicals: 1,2,4,5-tetrachloro-benzene, 4-chloro-2-methylaniline (p-chloro-o-toluidine), benz(a)anthracene, dibenz(a,h)anthracene, dibromochloromethane, dichloroacetic acid, hexabromobiphenyl, hexachlorocyclohexane, N-nitroso-ethylamine, N-nitrosodimethylamine, pentabromophenol, polychlorinated naphthalenes, and Tris(2,3-di bromopropyl) phosphate (TBP).



For more information on the TSCA Work Plan, please visit the link above. Please contact Nexreg for Regulatory Services.

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