Proof of service.

The Board will include with each document which it serves, other than one of its decisions or orders, an acknowledgment of service or the following certificate: I hereby certify that I have this day served the foregoing document upon all parties of record in this proceeding by delivering a copy thereof in person to ......................... or by mailing a copy thereof, properly addressed and with postage prepaid to....................................................................... DATED at.............. this ............(day) of ....................(month) of ............(year) ......................................................................... (Signature)