Tolerances for total residues of combined arsenic (calculated as As) in food are established as follows:
    
    
        
        (a) 
         In edible tissues and in eggs of chickens and turkeys:
     
    
        
        (1) 
         0.5 part per million in uncooked muscle tissue.
     
    
        
        (2) 
         2 parts per million in uncooked edible by-products.
     
    
        
        (3) 
         0.5 part per million in eggs.
     
    
        
        (b) 
         In edible tissues of swine:
     
    
        
        (1) 
         2 parts per million in uncooked liver and kidney.
     
    
        
        (2) 
         0.5 part per million in uncooked muscle tissue and by-products other than liver and kidney.