146.5—Specific provisions for all participating flocks.
               		
               	 	
               	 	
               	 	               	 	               	 	               	 	               	 	
               	 	
    
        
        (a) 
         Participating flocks, and all equipment used in connection with the flocks, shall be separated from non-participating flocks in a manner acceptable to the Official State Agency.
     
    
        
        (b) 
         Poultry equipment, and poultry houses and the land in the immediate vicinity thereof, shall be kept in sanitary condition as recommended in  § 147.21(c) of this subchapter.