Ariz. Admin. Code § R18-18-106
The owner or operator of a facility at which a reportable release occurs shall:
New Section R18-18-106 recodified from R8-4-106 at 27 A.A.R. 1535, with an immediate effective date of September 1, 2021 (Supp. 21-3). Amended by final expedited rulemaking at 31 A.A.R. 1706 (May 30, 2025), with an immediate effective date of May 8, 2025 (Supp. 25-2).