The info I got about a permit is that as long as we are in the city limits and plan a peaceful assembly, we don't need a permit, just notification.
Our area may fall under the jurisdiction of the Harbor Police so the main organizer has a call in but isn't anticipating any problems.
U.S. Constitution Amendment I: "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances."