(b) The revenues described in subdivision (a) shall not be used for the payment of principal and interest on state transportation general obligation bonds that were authorized by the voters on or before November 8, 2016, nor shall those revenues be used for payment of principal and interest on state transportation general obligation bond acts approved by the voters after that date, unless the bond act expressly authorizes that use.
(c) Except as provided in Sections 16310 and 16381 of the Government Code, as those sections read on January 1, 2018, the Legislature shall not borrow the revenues described in subdivision (a), and shall not use these revenues for purposes, or in ways, other than as authorized in subdivisions (a) or (b).
