The Oregon Declaration of Proof of Service is a document used in Oregon state courts to prove that legal documents have been served to the correct person or party. This document is often used to prove that a summons, subpoena, or other legal document has been delivered to the correct person. It contains information such as the name of the person who was served, the date of service, the method of service, and the name and signature of the server. There are several types of Oregon Declaration of Proof of Service, including: In Person Service, Substituted Service, Nail and Mail Service, and Constructive Service.