Designated representative means the Captain of the Port Lake Michigan and Commanding Officer, Marine Safety Unit Chicago.
On-scene representative means any Coast Guard commissioned, warrant or petty officer who has been designated by the Captain of the Port, Lake Michigan, to act on his or her behalf. The on-scene representative of the Captain of the Port, Lake Michigan, will be aboard a Coast Guard, Coast Guard Auxiliary, or other designated vessel or will be onshore and will communicate with vessels via VHF-FM radio or loudhailer.
Vessel means every description of watercraft of other artificial contrivance used, or capable or being used, as a means of transportation on water. This definition includes, but is not limited to, barges.
33 C.F.R. §165.923