Official party status refers to the Westminster practice which is officially used in the Parliament of Canada and the provincial legislatures of recognizing parliamentary caucuses of political parties. In official documents, this is sometimes referred to as being a recognized party (parti reconnu). Traditionally in Westminster-style parliaments, the only non-governmental member other than the speaker with a recognised status is the Leader of the Opposition. This would be the member who had the widest support among opposition MPs, who would take the lead in questioning the government during parliamentary debates, and who would traditionally be called upon by the King or Governor to attempt to form a government if the previous government lost the confidence of the House. As political parties became more formalized in the 20th century, some Westminster parliaments (particularly in Canada, but also elsewhere) began to recognize opposition political party caucuses as having a distinct role, where they would have their own opportunities to ask questions during parliamentary debates and have their own organizational budgets and offices within the parliament buildings. Recognition in Parliament allows party caucuses certain parliamentary privileges. Generally official party status depends on winning a minimum number of seats (that is, the number of Members of Parliament or Members of the Legislative Assembly elected). The type of recognition and threshold needed to obtain it varies. However, the most coveted privileges are funding for party research offices and the right to ask questions during Question Period. At the federal level in Canada, the idea of recognizing parties for official status started in 1963. Prior to this, the only opposition recognition was that of the Leader of the Opposition, effectively limiting "official status" to the Government and the largest Opposition party. It was not until 1970 that the Elections Act was amended to allow parties to register and thus have their party name on the ballot.