175.17—Exemptions.
        
        (3) 
         The PFD is used in accordance with requirements in its owner's manual, if the approval label makes reference to such a manual.
    
    
        
        (b) 
         Canoes and kayaks 16 feet in length and over are exempted from the requirements for carriage of the additional Type IV PFD required under  § 175.15(b).
    
    
        
        (c) 
         Racing shells, rowing sculls, racing canoes and racing kayaks are exempted from the requirements for carriage of any Type PFD required under  § 175.15.
    
    
        
        (d) 
         Sailboards are exempted from the requirements for carriage of any Type PFD required under  § 175.15.
    
    
        
        (e) 
         Vessels of the United States used by foreign competitors while practicing for or racing in competition are exempted from the carriage of any PFD required under  § 175.15, provided the vessel carries one of the sponsoring foreign country's acceptable flotation devices for each foreign competitor on board.