Ariz. Admin. Code § R14-1-204
For the purposes of these rules, an “existing corporate name” is the name of any domestic corporation existing under the laws of this state; the name of any foreign corporation authorized to transact business in this state; a name reserved with the Arizona Corporation Commission pursuant to A.R.S. § 10-009 or 10-1007(B); or a trade name registered with the Secretary of State pursuant to A.R.S. § 44-1460.
Adopted effective June 21, 1982 (Supp. 82-3).