Wash. Rev. Code § 43.70.337
(1) Any person who constructs, alters, or makes an addition to temporary worker housing consisting of five or more dwelling units, or any combination of dwelling units, dormitories, or spaces that house ten or more occupants, or any person who constructs, alters, or makes an addition to temporary worker housing who elects to comply with the temporary worker building code under RCW 70.114A.081(1)(g), shall:
[ 1998 c 37 s 6.]