AIAT GB is the governing body in the United Kingdom for the traditional carriage driving competition - Concours International d'Attelage de Tradition (CIAT). The competition is conducted under the international rules of Association Internationale d'Attelage de Tradition (AIAT).
The competition is designed to promote the use of pre-1945 design traditional style carriages, both private and trade, and to reflect the skills and heritage of the driving of harness horses and ponies. The Event includes classes for singles, pairs, tandems, multiples and 4-in-hand in a traditionally built carriage. Events under the AIAT rules will be found in 14 countries across the world in over 72 locations.
The United Kingdom hosts a number of annual regional events.