(1) The new space identified under section 9 must be of an economic size.
(2) However, if it is not possible for a regional council to comply with subsection (1), the regional council must identify new space that is of an economic size even though the new space is not representative.
(3) However, if it is not possible for a regional council to comply with subsection (2), the regional council must identify new space that comprises a single area.
(4) New space identified under subsection (2) or subsection (3) must not have less than average productive capacity compared with the new space it was originally intended to be representative of.