The Executive and Liaison Committee of the Universal Postal Union, established by the Congress of Paris of 1947, held its fourth session at Montreux, Switzerland, May 15 to 26, 1950 under the presidency of J. J. Le Mouel, Director-General of French Posts. The first question dealt with by the committee concerned the representation of China; taking into consideration the technical character of UPU and the actual situation in China the committee recognized the representative of the People's Republic of China as the rightful delegate. The committee spent much of its time in discussion of air mail problems and it was decided to call a joint IATA/UPU conference in January 1951 for the purpose of attaining solutions to the problems. The recommendation of the delegate from Czechoslovakia that those governments whose air mail rates exceeded the rates fixed by the Paris Convention be pressed to reduce them, was adopted. A subcommittee consisting of France, Switzerland, Czechoslovakia and the United Kingdom was appointed to consider a revision of the form and substance of the acts of Paris concerning the international exchange of parcels. The report of the subcommittee entrusted with the work of rearranging and revising the acts of the Universal Postal Union was heard and adopted by the committee; the proposals would be placed before the Congress of 1952 for its approval. The committee scheduled its fifth session for May 21 to June 2, 1951 at St-Gall, Switzerland.