The parents or parent of any child who is temporarily or permanently delayed in normal educational processes and/or normal social adjustment by reason of physical, sensory or mental disability, or by reason of social or emotional maladjustment, or by reason of other disability, may petition the superior court for the county in which such child resides for an order for the commitment of such child to custody as provided in RCW
26.40.040, as now or hereafter amended.