(1) In deciding the part of an application for a preliminary approval mentioned in section 242 that states the way in which the applicant seeks approval to vary the effect of any applicable local planning instrument for the premises, the assessment manager must--
(a) approve all or some of the variations sought; or
(b) subject to section 242(3) and (5)--approve different variations from those sought; or
(c) refuse the variations sought.
(2) The assessment manager's decision must be based on the assessments made under division 2.
(3) The assessment manager's decision must not be inconsistent with a State planning regulatory provision.
(4) To the extent development applied for under other parts of the application is refused, any variation relating to the development must also be refused.