An order under section 31(1)(b) putting a child under the supervision of a designated Local Authority or of a Probation Officer. The order lasts for one year with a possible extension. The maximum duration is 3 years. The first interim order may be made for 8 weeks (subsequently 4 weeks). The court must be satisfied that the threshold criteria under Section 31 Children Act 1989 are crossed and the order is in the best interests of the child before they make it.