13.—(1) In its application for the purposes of any redetermination under regulation 12 of the amount of maintenance grant payable in respect of a school for the financial year in question, regulation 11 shall have effect subject to the following provisions of this regulation.
(2) Where the redetermination of maintenance grant under regulation 12(2) is made on one or more of the grounds specified in paragraph (1)(a) of that regulation the funding authority may take into account for the purposes of the redetermination any information received by them after the relevant date which relates to any of the reasons for making the redetermination.
(3) Where the redetermination of maintenance grant under regulation 12(2) is made on the grounds, specified in paragraph (1)(b) of that regulation, that the funding authority are satisfied that their determination was made in ignorance of, or was based on a mistake as to, some material fact, they may take into account any information received by them after the relevant date which relates to that fact.
(4) Where in accordance with paragraphs (2) and (3) any additional information is taken into account by the funding authority for the purposes of redetermining grant under regulation 12(2), they may take that information into account for the purposes of making any further redetermination under that regulation.
(5) Regulation 11 shall not apply where a redetermination is made by the funding authority in accordance with regulation 12(5) and (6).