If a Generating Facility complies with all applicable requirements of R14-2-2611, complies with the screens listed in R14-2-2615, and complies with the Utility's Interconnection Manual, a Utility shall not require the Customer to install additional controls, or to perform or pay for additional tests, in order to obtain approval to interconnect, unless the Customer agrees to do so or the Commission so requires. A Utility may install additional equipment or perform additional testing at its own expense.
Ariz. Admin. Code § R14-2-2612