Section 308 of the Principal Act is amended as follows:

(a) by inserting the following paragraph after paragraph (ac) in subsection (1) :

(ad) a notice of intention to resign has been given to the general manager under section 47(6) ; or

(b) by omitting subsection (2) and substituting the following subsection:

(2)  A by-election is to be held in conjunction with the next ordinary election if –

(a) the vacancy occurs during the period referred to in section 307(3) ; or

(b) the vacancy will be created by a notice of intention to resign given to the general manager under section 47(6) .