The Field Officer in Brigade Waiting holds an appointment in the Royal Household

Royal Household

A Royal Household in ancient and medieval monarchies formed the basis for the general government of the country as well as providing for the needs of the sovereign and his relations....

. He performs his duties at State Ceremonies under the authority of the Lord Great Chamberlain

Lord Great Chamberlain

The Lord Great Chamberlain of England is the sixth of the Great Officers of State, ranking beneath the Lord Privy Seal and above the Lord High Constable...

, the Lord Chamberlain

Lord Chamberlain

The Lord Chamberlain or Lord Chamberlain of the Household is one of the chief officers of the Royal Household in the United Kingdom and is to be distinguished from the Lord Great Chamberlain, one of the Great Officers of State....

 and the Earl Marshal

Earl Marshal

Earl Marshal is a hereditary royal officeholder and chivalric title under the sovereign of the United Kingdom used in England...

.

The Field Officer in Brigade Waiting is to be in attendance on the Sovereign

Monarch

A monarch is the person who heads a monarchy. This is a form of government in which a state or polity is ruled or controlled by an individual who typically inherits the throne by birth and occasionally rules for life or until abdication...

 on the following occasions:

• When the Sovereign drives in State to open or prorogue Parliament
  Parliament of the United Kingdom
  The Parliament of the United Kingdom of Great Britain and Northern Ireland is the supreme legislative body in the United Kingdom, British Crown dependencies and British overseas territories, located in London...
  
  .
• During a procession from Windsor Castle
  Windsor Castle
  Windsor Castle is a medieval castle and royal residence in Windsor in the English county of Berkshire, notable for its long association with the British royal family and its architecture. The original castle was built after the Norman invasion by William the Conqueror. Since the time of Henry I it...
  
   and in St George's Chapel following a Chapter of the Garter
  Order of the Garter
  The Most Noble Order of the Garter, founded in 1348, is the highest order of chivalry, or knighthood, existing in England. The order is dedicated to the image and arms of St...
  
  .

When Guards of Honour are mounted by the Guards Division

Guards Division

The Guards Division is an administrative unit of the British Army responsible for the administration of the regiments of Foot Guards and the London Regiment.-Introduction:...

, the Field Officer in Brigade Waiting is to be in attendance to receive The Queen's commands for the Foot Guards

Foot Guards

-British Army:The Foot Guards are the Regular Infantry regiments of the Household Division of the British Army. There have been six regiments of foot guards, five of which still exist. The Royal Guards Reserve Regiment was a reserve formation of the Household Brigade in existence from 1900-1901...

.

The Field Officer in Brigade Waiting is to command The Queen's Birthday Parade

Trooping the Colour

Trooping the Colour is a ceremony performed by regiments of the British and the Commonwealth armies. It has been a tradition of British infantry regiments since the 17th century, although the roots go back much earlier. On battlefields, a regiment's colours, or flags, were used as rallying points...

.

The Field Officer in Brigade Waiting is appointed by the Major General

Major-General commanding the Household Division

The Major-General commanding the Household Division commands the troops of the Sovereign of the United Kingdom. He is also General Officer Commanding London District.-Recent Commanders:The holders of this office include:...

 and is normally the Colonel Foot Guards, unless alternative arrangements are made. When not available, the Colonel Foot Guards is to nominate a replacement. Commanding Officers of Battalions may be taken for this duty. The Field Officer in Brigade Waiting commands Headquarters Foot Guards and controls the management of the five Regiments of Foot Guards. He oversees the military functions of the Regimental Headquarters.

The Field Officer in Brigade Waiting for the Queen's Birthday Parade will normally be the Commanding Officer of the Battalion finding the Escort. In 2011, this was Lt. Colonel Lincoln Jopp of 1st Battalion, Scots Guards

Scots Guards

The Scots Guards is a regiment of the Guards Division of the British Army, whose origins lie in the personal bodyguard of King Charles I of England and Scotland...