(a) Approvals.
         Type A medicated articles: 99 percent to 046573 in  § 510.600(c) of this chapter.
     
    
        
        (b) Related tolerances.
         See  § 556.660 of this chapter.
     
    
        
        (c) Conditions of use.
         It is used in fish feed for rainbow trout, brook trout, and brown trout as follows:
     
    
        
        (1) Amount.
         10 grams of sulfamerazine per 100 pounds of fish per day.
     
    
        
        (2) Indications for use.
         Control of furunculosis.
     
    
        
        (3) Limitations.
         Treat for not more than 14 days; do not treat within 3 weeks of marketing or stocking in stream open to fishing.
     
    
        
            Code of Federal Regulations
        
        [41 FR 11005, Mar. 15, 1976, as amended at 51 FR 7400, Mar. 3, 1986; 61 FR 18082, Apr. 24, 1996; 63 FR 27846, May 21, 1998; 66 FR 46707, Sept. 7, 2001]