Oregon Certificate of Mailing (Alternative Form of Service) (6A) is a form used by legal professionals in Oregon to prove service of process to a party who is not physically present in the state. It is an alternative to personal service of process, and is used when the party to be served is not physically in Oregon. It allows for service by mailing a copy of the documents to the party to be served. There are two types of Oregon Certificate of Mailing (Alternative Form of Service) (6A): Type 1 and Type 2. Type 1 is used when the documents being served are not confidential or sensitive, and Type 2 is used when the documents being served are confidential or sensitive. Both types require the legal professional to file the form with the court, attach a copy of the documents being served, and provide proof of mailing them to the party to be served.