A life tenure or service during good behaviour is a term of office that lasts for the office holder's lifetime, unless the office holder decides personally to resign or is removed from office because of misbehaving in office or due to extraordinary circumstances.
Some judges and members of upper chambers (e.g., senators for life) have life tenure. The primary goal of life tenure is to insulate the office holder from external pressures. Certain heads of state, such as monarchs and presidents for life, are also given life tenure. United States federal judges have life tenure once appointed by the president and confirmed by the Senate.