64.11—Design of MPTs.
         An MPT must be designed—
    
    
    
    
        
        (c) 
         To hold a liquid cargo that has a vapor pressure of 43 pounds per square inch absolute (psia) or less at a temperature of 122 °F;
    
    
    
        
        (e) 
         With a maximum allowable working pressure of not less than 20 pounds per square inch gauge (psig) but not more than 48 psig; and
    
    
    [CGD 84-043, 55 FR 37410, Sept. 11, 1990; 55 FR 40755, Oct. 4, 1990]