3.—(1) If, at any time after the transfer date but before the successor company has ceased to be wholly owned by the Crown, it appears to the Department that it is appropriate to do so, it may by order provide for the scheme to be deemed for all purposes to have been made with such modifications as may be provided for in the order.
(2) At any time after the successor company has ceased to be wholly owned by the Crown, the Department and the successor company may agree in writing that the scheme shall be deemed to have been made with such modifications as may be provided for in the agreement; and on the making of such agreement the scheme shall be deemed for all purposes to have been made with such modifications.
(3) The power under this paragraph to provide by order or agreement for the modification of the transfer scheme shall be exercisable for the purpose only of making provision that could originally have been made by the scheme.