art 4 Supplemental: validity of things done before coming into force of Order
(1) This Order does not affect the validity of anything done (or having effect as if done) under any of the provisions mentioned in article 2 or 3 by or in relation to the Secretary of State before the coming into force of this Order. (2) In particular, the amendment made by article 3(2) does not affect the duty of a local authority to have regard to any guidance given by the Secretary of State under section 507B(12) before the coming into force of this Order.