Washington Revised Code Title 47. Public Highways and Transportation § 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.