Ariz. Rev. Stat. § 49-1051
E. In processing the application for preapproval, the department shall determine the corrective action priority of the release within ninety days after the receipt of the materials required by this section. The corrective action priority shall be based on all of the following:
J. Corrective actions and costs for activities that were completed before the department's approval of the scope of work are eligible for reimbursement under section 49-1054 if the applicant otherwise complies with subsection A of this section and any of the following applies:
2. For corrective actions and costs for activities completed from and after December 31, 2015 through December 31, 2019, and for which the applicant's compliance with the preapproval process was impracticable due to: