Wash. Rev. Code § 84.36.660
(1) Prior to installation of an automatic sprinkler system under RCW 19.27.500 through 19.27.520, an owner or lessee of property who meets the requirements of this section may apply to the assessor of the county in which the property is located for a special property tax exemption. This application shall be made upon forms prescribed by the department of revenue and supplied by the county assessor.
(a)
[ 2007 c 434 s 3; 2005 c 148 s 4.]