Following the publication of Commission Regulation (EU) 2018/222 the responsibilities of the EURL for Monitoring Bacteriological and Viral Contamination of Bivalve Molluscs at Cefas have been transferred to the EU Reference Laboratories for the analysis and testing of zoonoses (salmonella) (, the EU reference laboratory for Escherichia coli, including verotoxigenic E. coli (vtec) (, and the EU reference laboratory for foodborne viruses The EU reference laboratory for the monitoring of marine biotoxins has taken over the activities related to the classification and monitoring of production areas for bivalve molluscs ( Information on Cefas’ International Reference Laboratory activities can be found at


This page gives information on recent activities of the EURL and of the network of laboratories.

  • European Union Proficiency Testing Programme

    The European Union Reference Laboratory (EURL) for bacteriological and viral contamination of bivalve molluscs organises regular proficiency testing (PT) amongst National Reference Laboratories (NRL’s) and other international laboratories. PT schemes allow a laboratory to assess their performance against other participants and is an important part of a laboratory quality system.

  • EURL Proficiency Testing Programme 2015/16

    Proficiency testing programme available for download in this section.

  • Shellfish hygiene course

    A shellfish hygiene course aimed at environmental health officers, local/regional government enforcement officers and technical staff engaged in hygiene and quality assurance.

  • Next workshop of microbiological NRLs

    The next workshop of microbiological NRLs will be held at the EURL in Weymouth, UK between 13th - 15th May.

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