Clark v. Community for Creative Non-Violence

A National Park Service regulation barred camping or sleeping overnight in national parks to protect park property, while still permitting groups to hold demonstrations and even erect temporary structures. The Community for Creative Non-Violence (plaintiff) got a permit to build symbolic tent cities in Washington parks to highlight homelessness, but the Park Service refused to let demonstrators actually sleep in the tents overnight. The Community sued, claiming the sleeping ban violated the First Amendment; the district court sided with the government, the court of appeals reversed, and the Supreme Court granted certiorari.