556.225—Doramectin.
        
        (a) Acceptable daily intake (ADI).
         The ADI for total residues of doramectin is 0.75 microgram per kilogram of body weight per day.
    
    
        
        (b) Tolerances—
        
        (1) Cattle.
         A tolerance of 100 parts per billion is established for parent doramectin (marker residue) in liver (target tissue) and of 30 parts per billion for parent doramectin in muscle.
    
    
        
        (2) Swine.
         A tolerance is established for parent doramectin (marker residue) in liver (target tissue) of 160 parts per billion.