Convoy means a group of vessels led by U.S. Coast Guard assets or COTP-designated vessels to assist vessels moving through the ice.
COTP means the Coast Guard Captain of the Port with jurisdiction over the geographic area as defined in 33 CFR subpart 3.25.
Designated representative means any Coast Guard commissioned, warrant, or petty officer who has been authorized by the cognizant COTP to assist in enforcing the safety zones described in paragraph (a) of this section.
Horsepower means the total maximum continuous shaft horsepower of a vessel's main propulsion machinery.
Ice Condition One means when the COTP or District Commander has received reports that approximately 30 percent of a safety zone defined in paragraph (a) has been covered with ice whose thickness is approximately 1 to 3 inches.
Ice Condition Two means when the COTP or District Commander has received reports that approximately 30 percent to 90 percent of a safety zone defined in paragraph (a) has been covered with ice whose thickness is approximately 3 to 9 inches.
Ice Condition Three means when the COTP or District Commander has received reports that approximately 90 percent or more of a safety zone defined in paragraph (a) has been covered with ice whose thickness is 9 inches or thicker.
Protected waters means sheltered waters such as harbors or basins that present no special hazards.
Public vessel means vessels owned or bareboat chartered and operated by the United States, or by a State or political subdivision thereof, or by a foreign nation, except when such vessel is engaged in commercial service.
33 C.F.R. §165.550