209.213—Appeal.
               		
               	 	
               	 	
               	 	               	 	               	 	               	 	               	 	
               	 	
    
        
        (a) 
         Any party aggrieved by a presiding officer's decision may file an appeal with the Administrator. The appeal must be filed within twenty (20) days after service of the presiding officer's decision.
     
    
        
        (b) 
         Prior to rendering a final determination on an appeal, the Administrator may remand the case for further proceedings before the hearing officer.
     
    
        
        (c) 
         The filing of an appeal does not stay the effectiveness of a compliance order unless the Administrator expressly so provides.