Ariz. Rev. Stat. § 32-3244
If a meeting, or a portion of a meeting, of the interstate commission is closed pursuant to section 32-3241, section 11, subsection H, the commission's legal counsel or designee shall certify that the meeting may be closed and shall reference each relevant exempting provision consistent with title 38, chapter 3, article 3.1. The commission shall keep minutes that fully and clearly describe all matters discussed in the meeting and shall provide a full and accurate summary of actions taken and the reasons for those actions, including a description of the views expressed. All documents considered in connection with an action shall be identified in these minutes. All minutes and documents of a closed meeting shall remain under seal, subject to release by a majority vote of the commission or an order of a court of competent jurisdiction.
A.R.S. § 32-3244