Service of notices: expanded methods include personal delivery, post, courier, electronic transmission, exchange service or website posting. Regulation 22 is substituted to prescribe that notices may be served by delivering or tendering to the person or authorised agent; by registered post with acknowledgement, speed post, Board approved courier or any transmission method affording a record of delivery including fax and email; by service through the concerned stock exchange for stock brokers; or, if none of these are possible, by affixing the notice on the premises with a written report witnessed by two persons or by posting the notice on the Board's website.