Northern Territory Consolidated Acts Northern Territory Consolidated Acts86. By-elections
(1) If a casual vacancy occurs in the membership of a council more than 12 months before the end of the member's term, a by-election is to be held to fill the vacancy.
(2) If the member whose seat has become vacant represented a ward, the by-election is confined to the ward.
(3) A by-election is to be held on a date fixed by the returning officer for the relevant area.
(4) The date must fall within 3 months after the returning officer receives notice of a casual vacancy in the membership of the council for which a by-election is required.
Part 8.3. Electors and electoral rolls