Oregon Revised Statutes Domestic Relations § 107.835

(1) When a court enters a judgment, order or modification of a judgment or order under ORS 163.760 to 163.777 or ORS chapter 25, 107, 108, 109, 110 or 416, the court shall allow any party to the judgment or order to include in the judgment or order a waiver of personal service in a subsequent contempt proceeding in order to maintain the confidentiality of the party's residential address. In the waiver, the party shall give a contact address for service of process and select one of the following methods of substituted service:

(2) Any time after a party has waived personal service under subsection (1) of this section, the party may file an amended waiver designating a different method of substituted service or a different address for substituted service. The party shall give notice of the amendment to all other parties.

(3) The State Court Administrator shall prescribe the content and form of the waiver and amended waiver described in this section.