4.03-2—Serious marine incident.
         The term serious marine incident includes the following events involving a vessel in commercial service:
    
    
        
        (a) 
         Any marine casualty or accident as defined in  § 4.03-1 which is required by  § 4.05-1 to be reported to the Coast Guard and which results in any of the following:
    
    
    
        
        (2) 
         An injury to a crewmember, passenger, or other person which requires professional medical treatment beyond first aid, and, in the case of a person employed on board a vessel in commercial service, which renders the individual unfit to perform routine vessel duties;
    
    
    
    
        
        (5) 
         Actual or constructive total loss of any self-propelled vessel, not subject to inspection under 46 U.S.C. 3301, of 100 gross tons or more.
    
    
        
        (b) 
         A discharge of oil of 10,000 gallons or more into the navigable waters of the United States, as defined in 33 U.S.C. 1321, whether or not resulting from a marine casualty.
    
    
        
        (c) 
         A discharge of a reportable quantity of a hazardous substance into the navigable waters of the United States, or a release of a reportable quantity of a hazardous substance into the environment of the United States, whether or not resulting from a marine casualty.