Conservative Justices Appear to Side With San Francisco in Water Quality Dispute

Conservative Justices Appear to Side With San Francisco in Water Quality Dispute

The justices heard arguments on Wednesday in a long-simmering dispute between San Francisco and the E.P.A. over regulation of water pollution.
Supreme Court Limits Power of Federal Agencies, Imperiling an Array of Regulations

Supreme Court Limits Power of Federal Agencies, Imperiling an Array of Regulations

A foundational 1984 decision had required courts to defer to agencies’ reasonable interpretations of ambiguous statutes, underpinning regulations on health care, safety and the environment.