RCW 47.60.430: Additional revenue bonds, refunding bonds, authorized, 1961 Act—Agreement to continue imposition of certain taxes.

So long as any bonds issued as authorized herein are outstanding, the state hereby agrees to continue to impose at least one-quarter cent of motor vehicle fuel tax and one-quarter cent of special fuel tax required by law and to deposit the proceeds of these taxes in the Puget Sound capital construction account of the motor vehicle fund.