Section 165.764 - Security Zone; Coast Guard Sector Key West, Trumbo Point Annex, Key West Harbor, Key West, FL(a)Location. The following area is a security zone: All waters within 100 yards of the Coast Guard Sector Key West, from surface to bottom, encompassed by a line that extends north 100 yards into the Fleming Key Channel from point 24°34'02'' N, 81°47'52.7'' W; thence westerly, maintaining 100 yards from the Coast Guard property; thence southerly, 100 yards from the end of the piers to 24°33'50.6'' N 81°48'11.0'' W; thence easterly to 24°33'48.8'' N, 081°47'54.8'' W, and along the shore line back to the beginning point. These coordinates are based on North American Datum 1983.(b)Definitions. As used in this section, vessel means every description of watercraft or other artificial contrivance used, or capable of being used, as a means of transportation on water, except U.S. Coast Guard or U.S. naval vessels.(c)Regulations.(1) Under the general security zone regulations in subpart D of this part, no person or vessel may enter or remain in the security zone described in paragraph (a) of this section without the permission of the Captain of the Port, other than Government-owned vessels.(2) While anchoring, loitering, or fishing activities are prohibited, vessels may transit the following portions of the security zone at safe speed: (i) Fleming Key Cut, extending from the northwest corner of Pier D-3 of U.S. Coast Guard Key West, eastward beneath the Fleming Key bridge.(ii) Key West Bight Channel, which extends easterly from the Main Ship Channel into Key West Bight, the northerly edge of which channel passes 25 feet south of the U.S. Coast Guard Sector Key West piers on the north side of the Bight.