Variation and revocation of maintenance order registered in United Kingdom court.
9.—(1) Where a registered order has been varied by a court in the Republic of Ireland, the registered order shall, as from the date on which the order of variation took effect or 1st April 1975, whichever is the later, have effect as varied by that order.
(2) Where a registered order has been revoked by a court in the Republic of Ireland, the registered order shall, as from the date on which the order of revocation took effect or 1st April 1975, whichever is the later, be deemed to have ceased to have effect except as respects any arrears due under the registered order at that date.
(3) The prescribed officer of the registering court shall register in the prescribed manner any order varying a registered order.