RCW 26.09.430: Notice requirement.

Except as provided in RCW 26.09.460, a person with whom the child resides a majority of the time, or a person with substantially equal residential time, shall notify every other person entitled to residential time or visitation with the child under a court order if the person intends to relocate. Notice shall be given as prescribed in RCW 26.09.440 and 26.09.450.