Prior to 1 April 2006 Training Group held British Government agency status, operating as the Training Group Defence Agency (TGDA). Upon the loss of its agency status, the formation became known simply as Training Group.
The Group had seven areas of responsibility:
Training Group's last Air Officer Commanding was Air Vice-Marshal John Ponsonby who was both Chief of Staff Training and Air Officer Commanding Training Group. The Air Officer Commanding was responsible to his superior commander, the Air Member for Personnel, who was also Air Officer Commanding-in-Chief Personnel & Training Command.