The mayor and councillors are voted in to office for a three-year term. They cannot be removed by governing body resolution, by the Local Government Commission, or by the Minister of Local Government  (or any other central government minister). However, the mayor or councillor will no longer hold office if he/she:
dies or becomes mentally incapable 
is absent without leave from four consecutive meetings (other than extraordinary meetings)
is disqualified from office. This occurs if the member
There will be a new election for a vacant position if a vacancy occurs more than 12 months before the next triennial general election . This is referred to as a by-election. Depending on timing, there is the option that the role remains vacant, or a person is appointed without an election.