64.—(1) The Department may, if it thinks fit, by order specify a maximum amount or a formula for calculating a maximum amount of grant which the Executive may pay in respect of an application for a grant.
(2) An order under this Article may make provision for different types of grant or for the same type of grant in different circumstances.
(3) In relation to an application for a grant in respect of works for any of the purposes in Article 54(1) (mandatory disabled facilities grant), the order may—
(a)provide for a maximum amount of grant which must be paid if the application is approved, and
(b)authorise the Executive, if it thinks fit, to pay a further amount in excess of that maximum but subject to such other maximum (if any) as may be specified in or determined in accordance with the order.
(4) The Executive may not, except as mentioned in paragraph (3), pay an amount of grant in excess of a specified maximum amount.