Ariz. Rev. Stat. § 29-2304
A. A plan of interest exchange of a domestic acquired entity may be amended either:
2. By the governors or interest holders of the entity in the manner provided in the plan, except that an interest holder that was entitled to vote on or consent to approval of the interest exchange is entitled to vote on or consent to any amendment of the plan that will change any of the following:
B. After a plan of interest exchange has been approved by a domestic acquired entity and before a statement of interest exchange becomes effective pursuant to section 29-2305, the plan may be abandoned by the domestic acquired entity, subject to any contractual rights:
2. If not provided in the plan, either:
C. If a statement of interest exchange has been delivered for filing with the appropriate filing authority, the plan of interest exchange may be abandoned only if the statement of interest exchange sets forth a delayed effective date under section 29-2305, subsection B, paragraph 3. A plan of interest exchange may be abandoned by delivering for filing with the appropriate filing authority on or before the delayed effective date a statement of abandonment, signed on behalf of the domestic acquired entity. A statement of abandonment takes effect on delivery for filing, and the interest exchange is abandoned and does not become effective. The statement of abandonment must contain all of the following: