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.[ 1986 c 66 s 5; 1961 ex.s. c 9 s 4.]Notes:Effective date—1986 c 66: See note following RCW 47.60.400.