The livery that the staff at the Mews are required to wear depends on the type of ceremonies involved. These might include Full State ceremonies such as the State Opening of Parliament, Royal Weddings or Trooping the Colour. To have the Full State livery coats newly made is very rare, with the coachmen more commonly being fitted out from the stores. Once measured up, a coachman is allocated his or her Full State livery coat by the storeman marking their name inside the coat, often under the names of those who once worked for Queen Victoria and other monarchs.
Other ceremonies might be classed as Semi-State occasions, which require the wearing of different liveries. On these occasions, postillions will wear either the dark blue Semi-State jackets or the Ascot livery.