Arizona Proof of Service is a document used in Arizona legal proceedings to confirm that a defendant in a lawsuit has been notified of the suit. It is signed by either a process server, the sheriff, or the constable, and it certifies that the party named in the document was served with the legal documents. Arizona Proof of Service documents can be in the form of a Declaration of Service, an Affidavit of Service, or a Proof of Service by Mail. They must be notarized and filed with the court. The document must contain the date, time, and method of service, the name of the person served, and the signature of the person who served the documents. Arizona Proof of Service is an important part of the court process in Arizona and must be completed accurately and in a timely manner.