On 3 September1, on a proposal from the Commission, the Council approved two important measures to tighten the embargo on Serbia and Montenegro. In August the Commission had proposed special customs measures with the aim of making the Community embargo imposed on Serbia and Montenegro on 1 June more effective. The first measure adopted by the Commission on 11 August, on a proposal from Mr Andriessen, in agreement with Mrs Scrivener and Mr Matutes, is a draft Regulation which introduces a dual certificate system for Community exports to the Republics and territory of former Yugoslavia. The legislation basically authorizes exports to those countries only once prior import licences have been issued by their customs authorities and an undertaking has been given to confirm arrival of the goods at destination. The second measure adopted by the Commission on 26 August, on a proposal from Mrs Scrivener, is a draft Regulation limiting the use of TIR arrangements for consignments within the Community which transit Serbia and Montenegro. Use of TIR arrangements is confined to those operations covered by Community transit arrangements (for intra-Community trade) or the common transit system (trade between the EEC and EFTA). Community transit or common transit procedures are more finely honed and watertight than basic TIR arrangements, which leave the door open to deflection of trade. In addition to these measures, since mid-August the Commission and the British Presidency have carried out a series of customs fact-finding and technical assistance missions in the countries bordering Serbia and Montenegro. * * * 1 The Permanent Representatives Committee of 3 September approved these two proposals which must be formally adopted by the Council underwritten procedure on 8 September.