US lawWashingtonRegulationsTitle 388 — SOCIAL AND HEALTH SERVICES, DEPARTMENT OFChapter 388-02 — DSHS HEARING RULES388-02-0055WAC 388-02-0055WAC 388-02-0055. When must a party serve someone?Last amended: 2000Year: 2026Length: 29 wordsOfficial source A party must serve all other parties and their representatives whenever the party files a pleading, brief or other document with OAH or BOA, or when required by law.PreviousWAC 388-02-0050NextWAC 388-02-0060