This publication contains the contributions of the OECD Directorate for Science, Technology and Industry (DSTI), prepared in response to the request of the G8 Heads of State and Government that the OECD 'undertake a study of the implications of biotechnology and other aspects of food safety...' (G8 Summit in Cologne, June 1999).These DSTI reports are part of the complete OECD response to the G8 request, whose precise terms of reference were defined by the OECD Council in late Autumn 1999. This response consists of five sets of reports, mostly written by committees of officials from Member countries, which were co-ordinated by the Environment Directorate and the Directorate for Food, Agriculture and Fisheries. Mr. Michael Oborne, Head of the Internal Co-ordination Group on Biotechnology, was in charge of overall co-ordination of the OECD response. The complete list of OECD documents submitted to the G8 summit in Okinawa (July 2000) is attached in Annex. The reports are also available on the Web site: http://www.oecd.org/subject/biotech/g8_docs.htm.