170.070—Applicability.
        
        (b) 
         This subpart does not apply to any of the following vessels unless the stability of the vessel is questioned by the OCMI:
    
    
    
    
    
    
    
        
        (3) 
         A tank vessel that only carries a product listed in  § 30.25-1 of this chapter and that is less than 150 gross tons.
    
    
    
    
    
    
        
        (5) 
         A sailing school vessel that is an open boat that complies with the requirements in  § 173.063(e) of this subchapter.
    
    [CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 83-005, 51 FR 923, Jan. 9, 1986]