ACC Warns EPA Against ‘Binary’ D4 Evaluation Under Current TSCA Rules

The American Chemistry Council (ACC) is pressing EPA to state clearly whether its TSCA evaluation of the siloxane known as D4 will follow officials’ plans for “binary” risk determinations that apply to chemicals as a whole rather than individual uses, arguing that the new approach violates Trump-era “framework” rules for the toxics program. In Oct. 25 comments on EPA’s proposed scope for the D4 evaluation, ACC’s Silicones Environmental, Health and Safety Center (SEHSC) argues that if EPA applies the binary...