504.2—Fees for deposit and requisition of microbial cultures.
        
        (a) 
         Depositors of microbial cultures must pay a one-time $500 user fee for each culture deposited on or after November 1, 1983.
    
    
        
        (b) 
         For cultures deposited on or after November 1, 1983, requesters must pay a $20 user fee for each culture distributed. Cultures which were deposited on or after November 1, 1983 have an identification number greater than 15,722.