|Reliable detection methods are essential for the labeling of GMO concerned food and for the control at the EU borders. This programme will collaborate with two previous EU programs in order to develop a new biochips technology for already assayed GMO. It will also develop assays for new released GMO not (yet) approved by the EU. The miniaturization and the multiparametric detection of the DNA micro array can be used in a "matrix approach" for both quantitative detection and typing of GMO. Amplifications by consensus PCR of parts of the plant and GMO used sequences can then be identified on the micro array. A final ring-test will assess the reliability of the micro-array testing and compare both technologies in terms of quantification and identification of GMO. Most of the laboratories are common to previous EU programmes making the comparison possible. The results will be proposed for CEN standardization.