Washington Revised Code Title 68. Cemeteries, Morgues, and Human Remains § 68.50.110. Burial, cremation, alkaline hydrolysis, or natural organic reduction

Except in cases of dissection provided for in RCW 68.50.100, and where human remains are rightfully carried through or removed from the state for the purpose of burial elsewhere, human remains lying within this state, and the remains of any dissected body, after dissection, must be decently buried, undergo cremation, alkaline hydrolysis, or natural organic reduction within a reasonable time after death.