19.—(1) Anything required to be served on a teacher for the purposes of these Regulations may be—
(a)delivered to the teacher personally;
(b)sent to or left at the teacher’s last known address; or
(c)where the teacher requests in writing that documents be served by such a method, sent by facsimile or electronic mail or similar means which are capable of producing a document containing the text of the communication.
(2) For the purposes of regulation 13(3) notice of a prohibition order shall be taken to have been served—
(a)where it was delivered to the teacher personally, on the day of delivery;
(b)where it was sent to the teacher by post or left at the teacher’s last known address, on the fourth day after the day on which it was sent or left;
(c)where the teacher requests in writing that documents be served by such a method, where it was sent by facsimile or electronic mail or similar means which are capable of producing a document containing the text of the communication, on the second day after the day on which it was transmitted.