66. (1) Save as in this Act otherwise expressly provided, all questions in a Chamber, or a joint sitting of two Chambers, of a Provincial Legislature shall be determined by a majority of votes of the members present and voting, other than the Speaker or President, or person acting as such. The Speaker or President, or person acting as such, shall not vote in the first instance, but shall have and exercise a casting vote in the case of an equality of votes.
(2) A Chamber of a Provincial Legislature shall have power to act notwithstanding any vacancy in the membership thereof, and any proceedings in a Provincial Legislature shall be valid notwithstanding that its discovered subsequently that some person who was not entitled so to do, sat or voted or otherwise took part in the proceedings.
(3) If at any time during a meeting of a Provincial Legislative Assembly less than one-sixth of the total number of members of the Chamber are present, or if at any time during a meeting of a Provincial Legislative Council less than ten members are present, it shall be the duty of the Speaker or President or person acting as such either to adjourn the Chamber, or to suspend the meeting until at least one-sixth of the members, or, as the case may be, at least ten members, are present.