RCW 89.30.745: Delinquency and sale in general improvement and divisional districts—Probative force of assessment book and delinquency list.

The assessment book or delinquency list, or a copy thereof, certified by the secretary showing unpaid assessments against any person or property is prima facie evidence of the assessment of the property, the delinquency, the amount of the assessments due and unpaid and that all the forms of law in relation to the assessment and levy of such assessment have been complied with.