Ariz. Rev. Stat. § 10-11506
B. Except as authorized by subsections C and D of this section, the corporate name, including a fictitious name, of a foreign corporation shall be distinguishable from:
C. A corporation may apply to the commission for authorization to use a name that is not distinguishable from one or more of the names described in subsection B of this section. The commission shall authorize use of the name applied for if either:
D. A corporation may use the name, including a fictitious name, of another domestic or foreign business or nonprofit corporation that is used in this state if the other corporation is incorporated or authorized to transact business or conduct affairs in this state and the proposed user corporation either has: