RCW 43.99I.070Additional means for payment of principal and interest.The legislature may provide additional means for raising moneys for the payment of the principal of and interest on the bonds authorized in RCW 43.99I.010, and RCW 43.99I.030 and 43.99I.040 shall not be deemed to provide an exclusive method for the payment.[ 1991 sp.s. c 31 s 7.]
Washington Legal Code