165.23—General regulations.
         Unless otherwise provided in this part:
    
    
    
        
        (b) 
         No person may bring or cause to be brought into a safety zone any vehicle, vessel, or object unless authorized by the COTP or the District Commander;
    
    
        
        (c) 
         No person may remain in a safety zone or allow any vehicle, vessel, or object to remain in a safety zone unless authorized by the COTP or the District Commander; and
    
    
        
        (d) 
         Each person in a safety zone who has notice of a lawful order or direction shall obey the order or direction of the COTP or District Commander issued to carry out the purposes of this subpart.