The City of London, unlike all other major Cities and counties, does not have an appointed Lord-Lieutenant or Deputy Lieutenants. Instead, a Commission of Lieutenancy acts on behalf of the Sovereign in areas where a Lord Lieutenant would normally undertake duties for the Sovereign. Every year the Queen appoints an additional Lieutenant for the City of London which is a post held for life.
The Commission is under the Chairmanship of the Lord Mayor, and each retiring Lord Mayor chooses one suitable nominee to join the Commission.