104.220—Company or vessel personnel with security duties.
         Company and vessel personnel responsible for security duties must maintain a TWIC, and must have  knowledge, through training or equivalent job experience, in the following, as appropriate:
    
    
    
    
        
        (c) 
         Recognition of characteristics and behavioral patterns of persons who are likely to threaten security;
    
    
    
    
    
    
    
    
    
    
        
        (l) 
         Methods of physical screening of persons, personal effects, baggage, cargo, and vessel stores; and
    
    
        
        (m) 
         The meaning and the consequential requirements of the different Maritime Security (MARSEC) Levels.