Wash. Rev. Code § 68.20.110
Nonprofit cemetery associations shall be authorized to purchase or take by gift or devise, and hold land exempt from execution and from any appropriation to public purposes for the sole purpose of a cemetery not exceeding eighty acres, which shall be exempt from taxation if intended to be used exclusively for burial purposes without discrimination as to race, color, national origin or ancestry, and in nowise with a view to profit of the members of such association: PROVIDED, That when the land already held by the association is all practically used then the amount thereof may be increased by adding thereto not exceeding twenty acres at a time.
RCW 68.20.110
Construction-1961 c 103: See note following RCW 49.60.040.
Property taxes, exemptions: RCW 84.36.020.