The joint International Air Transport Association/Universal Postal Union conference which met in Cairo in January 1951 to discuss air mail problems drew up a revised schedule of tariffs for the transport of mail by air. These new rates were to be recommended to the members of IATA for adoption. Other recommendations were made concerning the remuneration of air companies, the use of collector bags, practice regarding bills of lading and delivery, charges for insured mails, measures for the acceleration of air mail and the payment of transport charges when the mail was destroyed. In regard to its future program the conference suggested that the Congress of Brussels in 1952 should adopt provisions to abolish the present categories of air lines and that it should establish a new system of remuneration for commercial aviation companies. The conference further suggested the establishment of a Liaison Committee between IATA and UPU.