On an application to which this section applies, an authorised court may vary an order under section 18 so as to give parental responsibility for the child to another adoption agency (the substitute agency”) in place of the agency for the time being having parental responsibility for the child under the order ( “the existing agency”).

Where an order under section 18 is varied under this section, section 19 shall apply as if the substitute agency had been given responsibility for the child on the making of the order.