Handle means to engage in:
    
    
        
        (a) 
         Receiving pistachios;
     
    
        
        (b) 
         Hulling and drying pistachios;
     
    
        
        (c) 
         Further preparing pistachios by sorting, sizing, shelling, roasting, cleaning, salting, and/or packaging for marketing in or transporting to any and all markets in the current of interstate or foreign commerce; and/or
     
    
        
        (d) 
         Placing pistachios into the current of commerce from within the production area to points outside thereof: Provided, however, that transportation within the production area between handlers and from the orchard to the processing facility is not handling.