18.—(1) This paragraph has effect in relation to any notice or other document required or authorised by or under this Part to be delivered to the proper officer.
(2) Any such notice or document may be delivered to the proper officer by being transmitted to the proper officer by fax or other means of electronic data transmission, but only to a telephone number or, as the case may be, electronic address for the time being published by the proper officer for the purpose of receiving such notices or documents.
(3) Any notice or document so transmitted shall, unless the contrary is proved, be taken to have been delivered on the second working day after the day on which it was transmitted.
(4) Where the address of the proper officer includes a box number at a document exchange the delivery of such a document may be effected by leaving the document addressed to that box number—
(a)at that document exchange; or
(b)at a document exchange which transmits documents every working day to that exchange,
and any such document so left shall be taken to have been delivered on the second working day after the day on which it was left.
(5) Paragraphs 2(2)(a) and 4(4)—
(a)shall, in the case of a document transmitted by fax, be satisfied if a copy of the signature of the relevant person appears on the transmitted copy; and
(b)shall not apply in relation to a document transmitted by other means of electronic data transmission.