RCW 27.15.005 Findings.The legislature finds that it is in the interests of the people of the state of Washington to be able to establish library capital facility areas as quasi-municipal corporations and independent taxing units existing within the boundaries of existing rural county library districts, rural intercounty library districts, rural partial-county library districts, or island library districts, for the purpose of financing the construction of capital library facilities.
http://apps.leg.wa.gov/rcw/default.aspx?cite=27.15.005