Ariz. Admin. Code § R20-5-221
Any party may request that all other witnesses except the parties be excluded from the hearing until called to testify. The presiding administrative law judge may, in the judge’s discretion, grant or deny the request. If the request is granted, the presiding administrative law judge shall admonish each witness not to discuss the witness’s testimony with anyone other than attorneys on the case.
Former Rule XXI. Section repealed, new Section adopted effective July 6, 1993 (Supp. 93-3). R20-5-221 recodified from R4-13-221 (Supp. 95-1). Section repealed by final rulemaking at 28 A.A.R. 3435 (October 28, 2022), with an immediate effective date of October 5, 2022 (Supp. 22-4). New Section R20-5-221 renumbered from R20-5-153 by final rulemaking at 31 A.A.R. 4199 (October 31, 2025), effective December 6, 2025 (Supp. 25-4).