Wash. R. App. P. 14.2
A commissioner or clerk of the appellate court will award costs to the party that substantially prevails on review, unless the appellate court directs otherwise in its decision terminating review, or unless the commissioner or clerk determines an adult offender does not have the current or likely future ability to pay such costs. When the trial court has entered an order that an offender is indigent for purposes of appeal, that finding of indigency remains in effect, pursuant to RAP 15.2(f), unless the commissioner or clerk determines by a preponderance of the evidence that the offender's financial circumstances have significantly improved since the last determination of indigency. The commissioner or clerk may consider any evidence offered to determine the individual's current or future ability to pay. If there is no substantially prevailing party on review, the commissioner or clerk will not award costs to any party. An award of costs will specify the party who must pay the award. In a criminal case involving an indigent adult offender, an award of costs will apportion the money owed between the county and the State. A party who is a nominal party only will not be awarded costs and will not be required to pay costs. A "nominal party" is one who is named but has no real interest in the controversy.
Wash. R. App. P. RAP 14.2