[The network of community and national reference laboratories for residues]

The European Union established in the early 1990's a network of Community reference laboratories (CRL) for residues in living animals and their products. This field is regulated at present by the Council Directive 96/23/CE of 26 April 1996, adopted at the national level through the Decree DL.vo no. 336 of 4 August 1999. The four CRL are based in France, Germany, Italy and The Netherlands, respectively, each of them being responsible for different categories of residues. The CRL provides technical support to the European Commission in this matter as well as to the National reference laboratories (NRL) for residues in the member states. The four CRL bear responsibility also as regards the adoption of quality systems by NRL. In this respect, the revised principles of good laboratory practice recently issued by OECD demand that procedures be developed to inform and assist the NRL to implement them.