(1)Local development scheme must be construed in accordance with section 15.
(2)Local development document must be construed in accordance with section 17.
(3)A development plan document is a document which—
(a)is a local development document, and
(b)forms part of the development plan.
(4)Local planning authorities are—
(a)district councils;
(b)London borough councils;
(c)metropolitan district councils;
(d)county councils in relation to any area in England for which there is no district council;
(e)the Broads Authority.
(5)A National Park authority is the local planning authority for the whole of its area and subsection (4) must be construed subject to that.
(6)RSS and RPB must be construed in accordance with Part 1.
(7)This section applies for the purposes of this Part.