(1) DCS applies the Washington state child support schedule when reviewing support orders under this section. All deviations available under chapter 26.19 RCW are available in the review and modification process under this section.

(2) For the purpose of this section and WAC 388-14A-3900 through 388-14A-3906, the term "party" means a party to a superior court order, or a noncustodial parent or a custodial parent entitled to petition for modification under RCW 74.20A.059.