Washington Revised Code Title 26. Domestic Relations § 26.23.090. Employer liability for failure or refusal to respond or remit earnings

(1) The employer shall be liable to the Washington state support registry, or to the agency or firm providing child support enforcement for another state, under Title IV-D of the federal social security act and issuing a notice, garnishment, or wage assignment attaching wages or earnings in satisfaction of a support obligation, for the amount of support moneys which should have been withheld from the employee's earnings, if the employer:

(2) Liability may be established in superior court or may be established pursuant to RCW 74.20A.350. Awards in superior court and in actions pursuant to RCW 74.20A.350 shall include costs, interest under RCW 19.52.020 and 4.56.110, and reasonable attorneys' fees and staff costs as a part of the award. Debts established pursuant to this section may be collected by the division of child support using any of the remedies available under chapter 26.09, 26.18, *26.21, 26.23, 74.20, or 74.20A RCW for the collection of child support.