Rule 20.  Ex Parte Communications.

With the exception of scheduling or other purely administrative matters, and with the exception of mediation processes, a party or counsel for a party shall not initiate any communication with an administrative law judge pertaining to a matter before the OAC unless prior consent of all other parties or their counsel has been obtained.  Copies of all pleadings or correspondence filed with the OAC or directed to an administrative law judge by any party shall be served upon all other parties or their counsel.