Wash. Rev. Code § 26.09.440
(1) Except as provided in RCW 26.09.450 and 26.09.460, the notice of an intended relocation of the child must be given by:
(b) No less than:
(2)
(a) The notice of intended relocation of the child must include:
(b) Except as provided in RCW 26.09.450 and 26.09.460, the following information shall also be included in every notice of intended relocation of the child, if available:
[ 2000 c 21 s 6.]
Intent—Captions not law—2000 c 21: See notes following RCW 26.09.405.