Hazardous condition means any condition that may adversely affect the safety of any vessel, bridge, structure, or shore area or the environmental quality of any port, harbor, or navigable waterway of the United States. It may, but need not, involve collision, allision, fire, explosion, grounding, leaking, damage, injury or illness of a person aboard, or manning-shortage.
33 CFR § 160.202
Terms in this subpart that are not defined in this section or in 160.3 have the same meaning as those terms in 46 U.S.C. 2101. As used in this subpart -