(a) Location. The following area is a security zone: All navigable waters of the Oakland Estuary, California, from the surface to the sea floor, approximately 50 yards into the Oakland Estuary surrounding the Coast Guard Island Pier. The perimeter of the security zone follows the same perimeter as the floating security barrier installed around the Coast Guard Island pier. The perimeter of the security barrier is located along the following coordinates: commencing at a point on land approximately 50 yards northwest of the northwestern end of the Coast Guard Island Pier at latitude 37°46′53.60″ N and longitude 122°15′06.10″ W; thence to the edge of the navigable channel at latitude 37°46′51.83″ N and longitude 122°15′07.47″ W; thence to a position approximately 10 yards into the charted navigation channel at latitude 37°46′51.27″ N and longitude 122°15′07.22″ W; thence closely paralleling the edge of the charted navigation channel to latitude 37°46′46.75″ N and longitude 122°15′00.21″ W; thence closely paralleling the edge of the charted navigation channel to a point approximately 20 yards into the charted navigation channel at latitude 37°46′42.36″ N and longitude 122°14′51.55″ W; thence to a point on land approximately 50 yards southeast of the southeastern end of the Coast Guard Island Pier at latitude 37°46′44.80″ N and longitude 122°14′48.80″ W; thence northwest along the shoreline back to the beginning point.

(b) Regulations.

(c) Enforcement. The Captain of the Port will enforce this security zone and may be assisted in the patrol and enforcement of this security zone by any Federal, State, county, municipal, or private agency.