Ariz. Rev. Stat. § 3-3494
A. From and after May 31 through September 30 of each year, all gasoline produced and shipped to or within this state and sold or offered for sale for use in motor vehicles in area C shall comply with either of the following fuel reformulation options:
C. A petition under subsection B of this section shall:
G. The associate director, in consultation with the director of the department of environmental quality, shall adopt by rule: