Ariz. Rev. Stat. § 15-448
B. Formation of a unified school district shall be by resolutions approved by the governing boards of the unifying school districts and certification of approval by such governing boards to the county school superintendent of the county or counties in which such individual school districts are located. A common school district and high school district that unify pursuant to this section shall not exclude from the same unification a common school district that has overlapping boundaries with the high school district and that wishes to unify. Except as provided in subsection D of this section, the formation of a unified school district becomes effective on July 1 of the next fiscal year following the certification of the county school superintendent. An election is not required to form a unified school district pursuant to this section. Notice of the proposed vote of the governing boards on the resolutions prescribed in this subsection shall be posted in at least three public places in each of the school districts proposed to be unified at least ninety days before the proposed vote. At least ninety days before the governing boards vote on the resolutions prescribed in this subsection, the governing boards shall mail a pamphlet to each household with one or more qualified electors that lists the full cash value, the assessed valuation and the estimated amount of the primary property taxes and the estimated amount of the secondary property taxes under the proposed unification for each of the following:
E. Beginning on January 1 following the first general election after formation of the unified school district, the governing board shall have five members. At the first general election after the formation of the district, members shall be elected in the following manner:
H. The governing board of the unified school district shall prepare policies, curricula and budgets for the district. These policies shall require that:
P. A unified school district may calculate its revenue control limit and district support level by using subsection O of this section as follows: