Winter v. NRDC

Supreme Court Decision in Winter v. NRDC


This case concerns the Navy’s use of “mid-frequency active” sonar during integrated training exercises in the waters off southern California. In these exercises, ships, submarines, and air-craft train together as members of a “strike group.” A strike group may not be certified for deployment until it demonstrates proficiency in the use of active sonar to detect, track, and neutralize enemy submarines. The SOCAL waters contain at least 37 species of marine mammals.The plaintiffs—groups and individuals devoted to the protection of marine mammals and ocean habitats—assert that MFA sonar causes serious injuries to these animals. The Navy disputes that claim. Plaintiffs sued the Navy, seeking declaratory and injunctive relief on the grounds that the training exercises violated the National Environmental Policy Act of 1969.

This decision vacates the preliminary injunction in favor of the Navy.

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Reference Info:Decision | Federal, U.S. Supreme Court | United States

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