The D.C. Circuit vacated certain requirements under an EPA rule concerning the assertion and treatment of confidential business information (CBI) claims for information reported to or otherwise obtained by the Agency under TSCA. Trade groups challenged the rule, arguing it allowed for unlawful discl...

A district court granted an electric transmission developer's motion for preliminary injunction against Indiana's 2023 law that granted incumbent transmission owners a right of first refusal to build transmission projects in their service areas. The developer argued the law blocked it from bidding o...

A district court granted EPA's motion to dismiss a TSCA citizen suit brought by environmental groups concerning fluorination. The groups sought to compel EPA to prohibit the company's fluorination practices, which produced per- and polyfluoroalkyl substances (PFAS), a class of carcinogenic chemicals...

A district court granted in part nonprofit and public interest groups' motion for summary judgment in a challenge to the Animal and Plant Health Inspection Service's (APHIS') 2020 rule concerning regulation of genetically engineered (GE) organisms. The groups argued the rule effectively abandoned fe...

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 children. Anti-fluoride groups and individuals had petitioned EPA under TSCA to regulate the fluoridatio...

The D.C. Circuit granted in part and denied in part a trade group's petition to review the Pipeline and Hazardous Materials Safety Administration's (PHMSA's) 2022 revised safety standards for natural gas transportation. The group challenged five of the standards, alleging flaws in the rulemaking pro...

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 use of pesticides to suppress grasshopper and cricket outbreaks. The groups argued APHIS' 2019 EIS and five state-le...

The D.C. Circuit affirmed a Federal Communications Commission (FCC) order licensing a new satellite system. An environmental group argued the FCC's decision not to perform an environmental review of light pollution and atmospheric effects of the system violated NEPA. The court found the license fell...

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 seven entities challenged the order, arguing EPA failed to comply with several statutory requirements. The c...

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 argued that EPA's decision, which granted the petition and agreed to require testing on PFAS as a class throu...