Navigation and navigable waters. Part64:Marking of structures, sunken vessels and other obstructions. Section64.11:Marking, notification, and approval requirements.
(a) The owner and/or operator of a vessel, raft, or other craft wrecked and sunk in a navigable channel must mark it immediately with a buoy or beacon during the day and with a light at night. The requirement to mark the vessel, raft, or other craft with a light at night may be waived by the District Commander pursuant to § 64.13 of this subpart.