(1)  A by-election for a vacancy in the office of councillor is to be held if –

(a) it is not possible to carry out a recount of votes; or

(ab) .  .  .  .  .  .  .  .  

(ac) .  .  .  .  .  .  .  .  

(ad) .  .  .  .  .  .  .  .  

(b) not all the offices have been filled at an election.

(1AA)  A by-election is not to be held during the period specified in section 307(3) .

(1A)  The Electoral Commissioner may fix a day as the closing day for a by-election.

(2)  .  .  .  .  .  .  .  .  

(3)  Except as provided in subsection (3A) , a by-election is to be held in accordance with this Part as if it were an election.

(3A)  The Electoral Commissioner, in consultation with the relevant general manager in relation to a by-election, may determine –

(a) the day on which notice of the by-election is to be given; and

(b) the nomination period; and

(c) the closure of electoral rolls.

(4)  A vacancy in the office of mayor is to be filled by a by-election held in accordance with subsections (1A) , (3) and (3A) .

(5)  The deputy mayor is eligible to nominate at a by-election as a candidate for the office of mayor without having to resign the office of deputy mayor and, if so elected, ceases to hold the office of deputy mayor.

(6)  If a mayor vacates office as both mayor and councillor, the vacancy in the office of councillor is to be filled by a by-election held concurrently with the by-election for the office of mayor.

(7)  The term of office of a councillor or mayor at a by-election to fill a casual vacancy is the remainder of the term of office of the councillor or mayor who caused the vacancy.