Oregon Revised Statutes Procedure in Civil Proceedings § 18.625

(1) For any property other than wages, a writ of garnishment acts to garnish only garnishable property of the debtor that is in the garnishee's possession, control or custody at the time the writ is delivered, including money that is owed but not yet due.

(2) Except as provided in ORS 18.618 (2), a writ of garnishment acts to garnish all wages owed by the garnishee to the debtor at the time the writ is delivered. Except as provided in subsection (3) of this section, a writ also acts to garnish all wages earned by the debtor by reason of services to the garnishee during the period commencing with the date the writ is delivered and ending on the earlier of:

(3) If a writ of garnishment is issued on behalf of a county or county agency, the writ acts to garnish all wages earned by the debtor by reason of services to the garnishee until the full amount owed to the county or county agency is paid or until the writ of garnishment is released by the county or county agency or by a court order. A writ of garnishment issued on behalf of a county or county agency shall contain language reasonably designed to notify the garnishee of the provisions of this subsection.