16.26—Form, filing and service of papers.
               		
               	 	
               	 	
               	 	               	 	               	 	               	 	               	 	
               	 	
    
        
        (a) Form.
        
        (1) 
         Documents filed
with the ALJ shall include an original and two
copies.
     
    
        
        (2) 
         Every pleading and paper filed in the
 proceeding shall contain a caption setting forth
 the title of the action, the case number assigned
 by the ALJ, and a designation of the paper (e.g., motion to quash subpoena).
     
    
        
        (3) 
         Every pleading and paper shall be signed
 by, and shall contain the address and telephone
 number of the party or the person on whose behalf
 the paper was filed, or his or her
 representative.
     
    
        
        (4) 
         Papers are considered filed when they are
 mailed. Date of mailing may be etablished by a
 certificate from the party or its representative
 or by proof that the document was sent by
 certified or registered mail.
     
    
        
        (b) Service.
         A party filing a
 document with the ALJ shall, at the time of
 filing, serve a copy of such document on every
 other party. Service upon any party of any
 document other than the complaint or notice of
 hearing shall be made by delivering or mailing a
 copy to the party's last known address. When a
 party is represented by an attorney, service shall
 be made upon such representative in lieu of the
 actual party.
     
    
        
        (c) Proof of service.
         A
 certificate of the individual serving the document
 by personal delivery or by mail, setting forth the
 manner of service, shall be proof of service.