Ariz. Rev. Stat. § 15-458
G. If two or more common school districts are within the boundaries of a union high school district, two or more unified school districts may be formed by a subdivision of the existing union high school district and by unification with the common school districts as provided in this section, subject to the following provisions:
1. Formation of a unified school district pursuant to this subsection shall be initiated if a majority of the governing board members of each of the districts affected unites in a petition to the county school superintendent for the establishment of a unified school district or if ten per cent of the number of qualified electors who voted in whichever of the last two general elections resulted in the higher number of ballots cast and who reside in each of the areas proposed to be the new unified school districts unite in a petition to the county school superintendent for the establishment of a unified school district. The petition shall include a statement of the proposed boundaries of the new unified school districts and shall request that the subdivision of the union high school district and formation of the unified districts be submitted to the qualified electors who reside within the proposed districts. The petition shall also include a detailed description of desegregation funding and expenses for the resulting school district as set forth in paragraph 7 of this subsection and may include the new school district name and other information as desirable. On receipt of the petitions, the county school superintendent shall examine the petitions within fifteen days of receipt to determine their sufficiency including the adequacy of the signatures of electors. If the petitions are found sufficient, the county school superintendent shall call an election to be held to determine the question. The county school superintendent shall prepare and the governing board shall distribute a subdivision and unification plan that includes:
3. The election shall be held as provided in section 15-459, except that the ballot shall contain the words "subdivision and unification, yes" and "subdivision and unification, no", and there shall be one of the following two ballot questions, whichever is applicable, stated as follows: