Washington Revised Code Title 26. Domestic Relations § 26.23.130. Notice to department of child support or maintenance orders

The department shall be given twenty calendar days prior notice of the entry of any final order and five days prior notice of the entry of any temporary order in any proceeding involving child support or maintenance if the department has a financial interest based on an assignment of support rights under RCW 74.20.330 or the state has a subrogated interest under RCW 74.20A.030. Service of this notice upon the department shall be by personal service on, or mailing by any form of mail requiring a return receipt to, the office of the attorney general; except that notice shall be given to the office of the prosecuting attorney for the county in which the action is filed in lieu of the office of the attorney general in those counties and in the types of cases as designated by the office of the attorney general by letter sent to the presiding superior court judge of that county. The department shall not be entitled to terms for a party's failure to serve the department within the time requirements for this section, unless the department proves that the party knew that the department had an assignment of support rights or a subrogated interest and that the failure to serve the department was intentional.