19 (2) The vice-chairman of the Board shall perform the chairman’s functions whenever the chairman is for any reason unable to perform them. (3) The chairman or vice-chairman of the Board may at any time resign his office as such by one month’s notice in writing to the Minister. (4) Whenever the office of chairman or vice-chairman of the Board falls vacant, the President shall fill the vacancy within three weeks. 13 Meetings and procedure of Board (1) The Board shall hold its first meeting on such date and at such place as the Minister may fix, being not more than three months after the fixed date, and thereafter the Board shall meet for the dispatch of business as often as is necessary or expedient and, subject to this section, may adjourn, close and otherwise regulate its meetings and procedure as it thinks fit: Provided that the Board shall meet not less than six times in each financial year of the Authority. (2) The chairman of the Board⎯ (a) may at any time convene a special meeting of the Board; and (b) shall convene a special meeting of the Board on the written request of⎯ (i) the Minister, within such period as the Minister may specify; or (ii) not fewer than two members, not later than fourteen days after his receipt of such request. (3) Written notice of any special meeting convened in terms of subsection (2) shall be sent to each member not later than seven days before the meeting and shall specify the business for which the meeting has been convened: Provided that if, in the opinion of the chairman or Minister, as the case may be, the urgency of the business for which the meeting is to be convened so requires, notice of not less than fortyeight hours may be given. (4) No business shall be discussed at a special meeting convened in terms of subsection (2) other than⎯ (a) such business as may be determined by the chairman of the Board, where the chairman of the Board has convened the meeting in terms of paragraph (a) of that subsection; or (b) the business specified in the request for the meeting, where the chairman of the Board has convened the meeting in terms of paragraph (b) of that subsection. (5) The chairman or, in his absence, the vice-chairman shall preside at all meetings of the Board: Provided that, if the chairman and the vice-chairman are both absent from a meeting of the Board, the members present may elect one of their number to preside at that meeting as chairman. (6) Three members shall form a quorum at any meeting of the Board. (7) All acts, matters or things authorised or required to be done by the Board may be decided by a majority vote at a meeting of the Board at which a quorum is present.