Arizona Proof Of Delivery Or Mailing Notice Of Application In Informal Proceeding is a form used in the state of Arizona to notify individuals of pending applications in informal proceedings. This form is used to provide proof of delivery or mailing of the Notice of Application for an informal proceeding. It is typically used in cases involving guardianship, conservatorships, adoptions, name changes, and other cases that require a court hearing. There are two types of Arizona Proof Of Delivery Or Mailing Notice Of Application In Informal Proceeding forms: one for delivery and one for mailing. The delivery form requires a signature from the recipient or a witness to the delivery, while the mailing form requires proof of mailing from the United States Postal Service, such as a certified mail receipt. Both forms must be filed with the court in order to provide proof of notification.