4N.I.In the railway enactments—
(a)references to the Board of Trade, to the Minister of Transport, or to any department or officer of such Board or Minister, shall (subject to the provisions of paragraph ( b) of this Article) be construed as references to the Ministry of Commerce or to the corresponding department or officer (if any) attached to that Ministry:
(b)references to the Minister of Transport or the Commissioners of Public Works in Ireland shall, if they occur in relation to the making or repayment of any advance or loan, be construed as references to the Ministry of Finance, and in any other case shall be construed as references to the Ministry of Commerce.