A. Parties to all hearings governed by this statute may appear personally or through an attorney, except that a party must personally attend any hearing on the merits unless his attendance has been waived, in writing, by the Commission.

B. When a party appears through an attorney, service of all notices, motions, orders, decisions and other papers shall thereafter be made upon the attorney, unless the party requests otherwise in writing.

C. When a party is represented by an attorney, the attorney shall sign all motions, notices, requests, and other papers on behalf of the party, including a request for subpoenas. ONCA 07-09, eff. Dec. 8, 2006; ONCA 10-73, eff. Oct. 5, 2010; ONCA 11-09, eff. Feb. 11, 2011.