Washington Revised Code Title 68. Cemeteries, Morgues, and Human Remains § 68.32.110. Order of interment--General

In a family plot one right of interment may be used for the owner's interment and one for the owner's surviving spouse or state registered domestic partner, if any. Any unoccupied spaces may then be used by the remaining parents and children of the deceased owner, if any, then to the spouse or state registered domestic partner of any child of the owner, then to the heirs at law of the owner, in the order of death.