The Oregon Certificate of Service is a document issued by the Oregon Secretary of State’s office. It is used by businesses and organizations to prove that an individual or entity was served with certain documents in accordance with Oregon law. It is typically used in legal proceedings such as court cases and administrative hearings. There are three types of Oregon Certificate of Service: personal service, service by mail, and service by publication. Personal service involves delivering the documents directly to the person or entity being served. Service by mail involves sending the documents via certified or registered mail. Service by publication involves publishing a notice in a newspaper or other publication of general circulation. The Oregon Certificate of Service must include the name of the individual or entity served, the method of service used, the date of service, and the signature of the person who served the documents. It must also be notarized and signed by the Secretary of State. The Certificate of Service must be filed with the court or other tribunal before the case can proceed.