Canada holds elections for legislatures or governments in several jurisdictions: for the federal (national) government, provincial and territorial governments, and municipal governments. Elections are also held for self-governing First Nations and for many other public and private organizations including corporations and trade unions. Municipal elections can also be held for both upper-tier (regional municipality or county) and lower-tier (town, village, or city) governments. Formal elections have occurred in Canada since at least 1792, when both Upper Canada and Lower Canada had their first elections. Canada's first recorded election was held in Halifax in 1758 to elect the 1st General Assembly of Nova Scotia. All Canadian citizens aged 18 or older who currently reside in Canada as of the polling day (or at any point in their life have resided in Canada, regardless of time away) may vote in federal elections. The most recent Canadian federal election occurred on September 20, 2021. Elections for other levels of government may have additional residency or ownership requirements. For example, some municipalities allow both residents and non-resident landowners to vote. Electoral regulatory bodies Elections in Canada (Federal, Province or Territory) are organised by their respective election regulatory bodies, as follows: National elections (Federal elections) The Parliament of Canada has two chambers: the House of Commons has 338 members, elected for a maximum four-year term in single-seat electoral districts, and the Senate has 105 members appointed by the governor general on the advice of the prime minister. Senators are given permanent terms (up to age 75) and thus often serve much longer than the prime minister who was primarily responsible for their appointment. National elections are governed by the Canada Elections Act and administered by an independent agency, Elections Canada. Using the plurality voting system, Canadians vote for their local Member of Parliament (MP), who represents one specific constituency in the House of Commons. The leader of the party most likely to hold the confidence of the House of Commons becomes the prime minister. Most MPs are members of a political party, although candidates may stand for election as independents unaffiliated with any political party. Since the practice of listing candidates' party affiliation on ballots began with the 1972 election, the Canada Elections Act has required that all local candidates be directly approved by the leader of their affiliated party, effectively centralizing the candidate nomination process. Once candidates are elected, sitting members of parliament are