Wash. Rev. Code § 64.06.080
(1) Any ordinance, resolution, or policy adopted by a city or county that imposes a requirement on landlords or sellers of real property, or their agents, to provide information to a buyer or tenant pertaining to the subject property or the surrounding area is effective only after:
(2) If, prior to June 9, 2016, a city or county adopted an ordinance, resolution, or policy that imposes a requirement on landlords or sellers of real property, or their agents, to provide information to a buyer or tenant pertaining to the subject property or the surrounding area, the city or county must cause, within ninety days of June 9, 2016:
[ 2016 c 138 s 1; 2015 2nd sp.s. c 10 s 4.]