The TSCA Fluoride Trial, 2016 – present

Under the Toxic Substances Control Act (TSCA) of 1976, a group of non-profits and individuals petitioned the U.S. EPA in 2016 to end the addition of fluoridation chemicals into drinking water due to fluoride's neurotoxicity. The EPA rejected the petition. In response, the groups sued EPA in Federal Court in 2017. A 7-day trial was held in June 2020, with no ruling by the Court. The next phase of the trial is expected to be in January 2024.