A district court held that fluoridation of water at 0.7 milligrams per liter (mg/L), the level presently considered “optimal” in the United States, posed an unreasonable risk of reduced IQ in…

A district court granted summary judgment for conservation groups in a challenge to the Animal and Plant Health Inspection Service's (APHIS') recent update to a program concerning the…

The D.C. Circuit vacated a 2022 EPA order requiring chemical manufacturers/processors to test the chronic toxicity of 1,1,2-trichloroethane pursuant to TSCA. A trade organization representing…

The Fourth Circuit affirmed dismissal of a TSCA citizen suit concerning EPA's decision on a petition to require testing for 54 per- and polyfluoroalkyl substances (PFAS). Four citizen groups…

The Fifth Circuit vacated two orders EPA issued under TSCA that prohibited a plastics company from manufacturing or processing long-chain perfluoroalkyls (PFAS) during its fluorination process. In…

A district court granted a plastics company's request to dismiss a lawsuit concerning its production of per- and polyfluoroalkyl substances (PFAS). Environmental groups argued the company…

A district court granted EPA's motion to dismiss nonprofit groups' challenge to the Agency's response to their TSCA petition requesting comprehensive health and environmental…

The Second Circuit denied two petitions to review EPA's final rule restricting access by customers to methylene chloride. A solvent company challenged the rule, arguing that the method of…

The Ninth Circuit remanded, 2-1, a rule EPA promulgated in 2019 in response to the court's 2017 writ of mandamus directing the Agency to respond to the need for updated lead-based paint…

A district court granted nonprofit groups' motion for summary judgment in a challenge to EPA's denial of their petitions to initiate TSCA rulemaking to expand its information-gathering…