In legal English and in rules applicable elsewhere, the seat of an organisation is the centre of authority.
Also referred to as the siège réel, or head office, it is the legal centre of operations and the locale that generally determines the laws that bind the corporation.
[2] Austrian nationally-based seat requirements for architects and engineers were criticised by the European Commission in 2016, as the Commission believed the requirements were not consistent with the EU's Services Directive of 2006.
For example, from 2017 to 2021, the sitting President of the Australian Senate was Scott Ryan.
An incumbent politician who fails to win an election or is removed from office is said to be unseated.