Section 4-21.5-3-15 - Participation in proceeding(a) Any party may participate in a proceeding in person or, if the party is not an individual or is incompetent to participate, by a duly authorized representative.(b) Whether or not participating in person, any party may be advised and represented at the party's own expense by counsel or, unless prohibited by law, by another representative.As added by P.L. 18-1986, SEC.1. Amended by P.L. 33-1989, SEC.3.