3.—(1) If any person upon whom a notice has been served under Article 49 objects to complying with any requirement of the notice or objects to any restriction imposed thereby, he may, within 21 days of receiving the notice, give notice in writing to the Department stating his objection and the grounds thereof and requiring the matter in dispute to be heard and determined by a barrister or solicitor of not less than 10 years' standing, practising in Northern Ireland, to be appointed by the Lord Chief Justice.
(2) A person so appointed shall for the purpose of such hearing have all the powers conferred on an arbitrator by the Arbitration Act (Northern Ireland) 1937(1).
(3) In determining any question whether a notice shall be withdrawn as respects a requirement or restriction objected to, the arbitrator shall have power to order that the requirement or restriction shall have effect subject to such modifications (if any) as the arbitrator may direct.