The municipal government of Toronto is administered by Toronto City Council and includes the City of Toronto, the primary corporation which implements the decisions of council, as well as agencies and other city-owned corporations which are overseen by a board. A creation of provincial statute, its structure and powers are set out in the City of Toronto Act.
City council is composed of 25 councillors and the mayor of Toronto. Council passes by-laws, approves spending, and has direct responsibility and oversight of services delivered by the city and its agencies; the mayor is head of council and the nominal chief executive officer (CEO). The mayor appoints the city's senior management, selects councillors to chair the city's committees, and develops the annual budget.