The growth of its overseas sections led to a restructuring of the Institute in 1994, under which 10 national councils were established in various parts of the world. The Institute operates as a co-ordinating body and custodian of the Royal Charter. The Institute was formed as the United Kingdom National Council and is the largest national council with over half the total worldwide membership of CILT. In 1999 the former Institute of Logistics and Transport (ILT) took over from CIT UK as the UK National Council.