Deadline Nears for US EPA TSCA Nanomaterials Reporting Requirement

US EPA promulgated the rule in January 2017 under Section 8(a) of the Toxic Substances Control Act (TSCA). 82 Fed. Reg. 3641 (Jan. 12, 2017). The rule requires any person that manufactured, imported or processed a covered nanomaterial substance during the three years prior to the rule’s effective date to report certain information to US EPA within one year of the effective date.

Although the rule initially was to be effective in May 2017, US EPA extended the effective date until August 14, 2017, making the reporting deadline August 14, 2018. 82 Fed. Reg. 22088 (May 12, 2017). The extension also adjusted the beginning and end dates of the three-year period for which reporting is required.

The rule does not contain a formal definition of nanomaterials. Instead, the rule requires reporting of chemical substances that are solids at 25° Celsius and standard atmospheric pressure; that are manufactured or processed in a form where any particles (including aggregates and agglomerates) are in the size range of 1–100 nanometers (nm) in at least one dimension; and that are manufactured or processed to exhibit one or more “unique and novel properties.”



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