2.—(1) In relation to any part of the application to which this Schedule applies, the relevant planning authority has the right to request such further information from the undertaker as is necessary to enable it to consider the application.
(2) In the event that it considers such further information to be necessary it must, within twenty one (21) business days of receipt of the application, notify the undertaker in writing specifying the further information required and (if applicable) to which part of the application it relates. In the event that the relevant planning authority does not give such notification within this twenty one (21) day period it is deemed to have sufficient information to consider the application and thereafter is not entitled to request further information without the prior agreement of the undertaker.
(3) Where further information is requested under this paragraph in relation to part only of an application, that part is to be treated as separate from the remainder of the application for the purposes of calculating time periods in paragraph 1(1)(b), paragraph 1(3) and this paragraph.