Ariz. Rev. Stat. § 15-1225
C. An other postemployment benefits trust account established pursuant to subsection A of this section shall meet all of the following conditions:
E. The following expenditures may be made from an other postemployment benefits fund or an other postemployment benefits trust account:
F. An investment manager for an other postemployment benefits trust account established pursuant to subsection A of this section shall be either: