2. Except as provided by Articles 42 and 43, this Order does not affect the run-down and closure of any gas undertaking in accordance with an agreement entered into before the appointed day under Article 3 of the Gas (Northern Ireland) Order 1985; and the powers of the Department under Articles 5 and 6 of that Order shall continue to be exercisable in pursuance of such an agreement notwithstanding the repeal of the Order of 1985.N.I.