Wash. Rev. Code § 70.37.090
The authority shall have power to require persons applying for its assistance in connection with the investigation and financing of projects to pay fees and charges to provide the authority with funds for investigation, financial feasibility studies, expenses of issuance and sale of bonds and other charges for services provided by the authority in connection with such projects. All other expenses of the authority including compensation of its employees and consultants, expenses of administration and conduct of its work and business and other expenses shall be paid out of such fees and charges, out of contributions and grants to it, out of the proceeds of bonds issued for projects of participants or out of revenues of such projects; none by the state of Washington. The authority shall have power to establish special funds into which such money shall be received and out of which it may be disbursed by the persons and with the procedure and in the manner established by the authority.
RCW 70.37.090