Proposal for a Council regulation on the gradual establishment of a common organization of sugar markets. First directive concerning the participation of firms in the execution of building work for governments, their local or regional authorities and other public corporations. Decision amending the general programmes on freedom of establihment and freedom to supply services. Proposal for a Council regulation on the abolition of double taxation of motor vehicles engaged in international traffic. Supplement to Bulletin of the European Economic Community No. 5, 1964