Ariz. Admin. Code § R18-12-325
A. If a standby trust is funded upon the instruction of the Director with funds drawn from a guarantee, local government guarantee with standby trust, letter of credit, or surety bond, and if the amount in the standby trust is reduced below the full amount of coverage required, the owner or operator shall by the anniversary date of the financial mechanism from which the funds were drawn:
Adopted effective July 30, 1996 (Supp. 96-3). Amended by final rulemaking at 25 A.A.R. 3123, effective January 1, 2020 (Supp. 19-4).