The Assured and Adequate Water Supply Rules, A.A.C. R12-15-701 et seq. All letters of authorization are accepted online at MyPHX311.Please submit using the Submit Documents - City Services Bill button. Use this form to designate an agent to act on your behalf on any matter dealing with the valuation and classification of your property. Checks and money orders can be made out to, "Arizona Secretary of State. You can search for reports, forms, policies and pamphlet and posters with information about specific programs and services. Please complete this survey to assist in improving civil legal services in Arizona. Frequently Requested Forms. A taxpayer may also use Form 285 to grant additional powers to the Appointee, up to and including a power of attorney. September 2024 updates:.