The City of London

Local government in London, History of local government in London, and List of heads of London government
Arms of the Corporation of the City of London: argent, a cross gules in the first quarter a sword in pale point upwards of the last; supporters: two dragons with wings elevated and addorsed argent on each wing a cross gules; crest: on a dragon's wing displayed sinister a cross gules^[
The administration of London is formed of two tiers: a citywide, strategic tier and a local tier. Citywide administration is coordinated by the Greater London Authority while local administration is carried out by 33 smaller authorities.^[131] The GLA consists of two elected components: the mayor of London, who has executive powers, and the London Assembly, which scrutinises the mayor's decisions and can accept or reject the mayor's budget proposals each year.
The headquarters of the GLA is City Hall, Newham. The mayor since 2016 has been Sadiq Khan, the first Muslim mayor of a major Western capital. The mayor's statutory planning strategy is published as the London Plan, which was most recently revised in 2011. The local authorities are the councils of the 32 London boroughs and the City of London Corporation They are responsible for most local services, such as local planning, schools, social services, local roads and refuse collection. Certain functions, such as waste management, are provided through joint arrangements. In 2009–2010 the combined revenue expenditure by London councils and the GLA amounted to just over £22 billion.
The London Fire Brigade is the statutory fire and rescue service for Greater London, run by the London Fire and Emergency Planning Authority. It is the third largest fire service in the world. National Health Service ambulance services are provided by the London Ambulance Service (LAS) NHS Trust, the largest free-at-the-point-of-use emergency ambulance service in the world. The London Air Ambulance charity operates in conjunction with the LAS where required. Her Majesty's Coastguard and the Royal National Lifeboat Institution operate on the River Thames, which is under the jurisdiction of the Port of London Authority from Teddington Lock to the sea.^[141]