1. IOFI code of practice. International Organization of the Flavour Industry, Brussels
2. Council Directive of 22 June 1988 on the approximation of the laws of the Member States relating to flavourings for use in foodstuffs and to source materials for their production (88/388/EEC). Official Journal of the European Communities no L 184, 15 July 1988
3. Commission Directive 91/71/EEC of 16 January 1991 completing Council Directive 88/388/ EEC on the approximation of the laws of the Member States relating to flavourings for use in foodstuffs and to source materials for their production. Official Journal of the European Communities no L 42, 15 February 1991
4. Regulation (EC) no 2065/2003 of the European Parliament and of the Council of 10 November 2003 on smoke flavourings used or intended for use in or on foods. Official Journal of the European Communities no L 309, 26 November 2003
5. Directive 2003/114/EC of the European Parliament and of the Council of 22 December 2003 amending Directive 95/2/EC on food additives other than colours and sweeteners. Official Journal of the European Communities no L 24, 29 January 2004