A.R.S. § 49-721

The department shall prepare and keep current a statewide solid waste management plan which establishes standards for solid waste facilities in cooperation with facility owners or operators, local governments and management agencies. The department shall notify solid waste management agencies and facility owners or operators of proposed changes to the plan at least three months prior to submission of the plan to the director for adoption. The department shall update and readopt the plan as determined necessary by the director.