The child death review partners for two or more local authority areas in England may agree that their areas are to be treated as a single area for the purposes of sections 16M to 16O and subsections (3) and (4) of this section.
References in sections 16M to 16O and in subsections (3) and (4) of this section to a local authority area are to be read in accordance with any agreement under subsection (1).
Where a local authority is a child death review partner for the same local authority area as another local authority (as a result of an agreement under subsection (1)), the authorities may arrange for one of them to carry out functions under sections 16M to 16O on behalf of the other.
Where an integrated care board is a child death review partner for the same local authority area as another integrated care board, the boards may arrange for one of them to carry out functions under sections 16M to 16O on behalf of the other.