Supreme Court lifts restriction on Navy sonar testing

Justices overturn restrictions that require Navy to stop using sonar when marine mammals are within 2,200 yards of vessels

Citing national security interests, the U.S. Supreme Court ruled on November 12 that the Navy can once again conduct sonar training exercises, even if the tests harm marine life.

The 5–4 decision overturns restrictions that require the Navy to stop using sonar when marine mammals are spotted within 2,200 yards of its vessels.