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. Chevron v Natural Resources Defense Council (Supreme Court Decision), Environmental Protection Agency, Conservatism (US Politics), Chevron Corporation, Natural Resources Defense Council, Regulation and Deregulation of Industry, Supreme Court (US), Decisions and Verdicts, United States Politics and Government, Kagan, Elena, Roberts, John G Jr 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. NYT > Business