Ariz. Admin. Code § R4-26-304
An attorney who is not a member of the State Bar of Arizona shall not represent a party before the Board unless the attorney is admitted to practice pro hac vice before the Board under Rule 38(a) of the Rules of the Supreme Court of Arizona.
Renumbered from R4-26-151 effective July 3, 1991 (Supp. 91-3). New Section made by final rulemaking at 13 A.A.R. 1493, effective June 2, 2007 (Supp. 07-2). Amended by final rulemaking at 21 A.A.R. 3444, effective January 30, 2016 (Supp. 15-4). Amended by final rulemaking at 22 A.A.R. 3083, October 4, 2016 (Supp. 16-4).