Wash. Rev. Code § 15.89.040
(1) Upon receipt of a petition containing the signatures of five beer producers from a statewide Washington state craft brewing trade association or from other producers to implement this chapter and to determine producer participation in the commission and assessment under this chapter, the director shall:
(a) Conduct a referendum of beer producers. The requirements of assent or approval of the referendum are met if:
(2) If the director determines that the requisite assent has been given in the referendum conducted under subsection (1) of this section, the director shall:
[ 2011 c 54 s 2; 2006 c 330 s 5.]