Section 50: President of the senate and speaker of the House of Representatives.

1 There shall be-
a a President and a Deputy President of the Senate, who shall be elected by the members of that House from among themselves; and
b a Speaker and a Deputy Speaker of the House of Representatives, who shall be elected by the members of that House from among themselves.

2 The President or Deputy President of the Senate or the Speaker or Deputy Speaker of the House of Representatives shall vacate his office -
a if he ceases to be a member of the Senate or of the House of Representatives, as the case may be, otherwise than by reason of a dissolution of the Senate or the House of Representatives; or
b when the House of which he was a member first sits after any dissolution of that House; or
c if he is removed from office by a resolution of the Senate or of the House of Representatives, as the case may be, by the votes of not less than two-thirds majority of the members of that House.