Wash. Rev. Code § 81.104.230
(2) In lieu of the tax in subsection (1) of this section, a regional transit authority may submit an authorizing proposition to the voters within the boundaries of an enhanced service zone described in RCW 81.104.220, and if approved, may fix and impose a tax for the act or privilege of parking a motor vehicle in a facility operated by a commercial parking business within the enhanced service zone. The regional transit authority may provide that:
[ 2022 c 285 s 3.]