33 CFR §165.509

1. (a)Definitions. For purposes of this section, the Captain of the Port, Maryland-National Capital Region means the Commander, Coast Guard Sector Maryland-National Capital Region or any Coast Guard commissioned, warrant, or petty officer who has been authorized by the Captain of the Port, Maryland-National Capital Region to act on his or her behalf.
2. (b)Location. The following area is a security zone: All waters of the Severn River, from shoreline to shoreline, bounded by a line drawn from Horseshoe Point, at 38°59′47.6″ N, 076°29′33.2″ W; eastward across the Severn river to a point located at 39°00′01.5″ N, 076°29′08.5″ W; and a line drawn from Biemans Point, at 38°59′14.4″ N, 076°28′30.1″ W; westward across the Severn River to a point 38°59′03.5″ N, 076°28′50.0″ W, located on the Naval Academy waterfront. This security zone includes the waters of College Creek eastward of the King George Street Bridge (NAD 1983).
3. (c)Regulations.
   1. (1)The general regulations governing security zones found in § 165.33 apply to the security zone described in paragraph (b) of this section.
   2. (2)Entry into or remaining in this zone is prohibited unless authorized by the Coast Guard Captain of the Port, Maryland-National Capital Region.
   3. (3)Persons or vessels requiring entry into or passage through the security zone must first request authorization from the Captain of the Port, Sector Maryland-National Capital Region seek permission to transit the area. The Captain of the Port, Maryland-National Capital Region can be contacted at telephone number (410) 576-2693. The Coast Guard vessels enforcing this section can be contacted on Marine Band Radio VHF channel 16 (156.8 MHz). Upon being hailed by a U.S. Coast Guard vessel by siren, radio, flashing light, or other means, the operator of a vessel shall proceed as directed. If permission is granted, all persons and vessels must comply with the instructions of the Captain of the Port, Maryland-National Capital Region and proceed at the minimum speed necessary to maintain a safe course while within the zone.
4. (d)Enforcement. The U.S. Coast Guard may be assisted in the patrol and enforcement of the zone by Federal, State, and local agencies.
5. (e)Enforcement period. This section will be enforced annually on the Friday before the Memorial Day holiday in May from 7:30 a.m. to 2 p.m. local time.