The aim of this project is to prepare and to write a book covering all areas of quality assurance in food and water microbiology from a theoretical and practical viewpoint. The existence of such Q.A. recommendations will allow real comparisons between laboratories of member states and will influence the success of the application of directives governing microbiological quality of food and water. Quality assurance is well developed in chemical measurements but is in its infancy in microbiology and is only just being explored by experts in different member states. This project brings together experts to explore and define the areas affecting quality assurance and quality control in microbiology. The objective of producing a book will encourage agreement and uniformity in different member states trough an easy available tool. This will be achieved by a series of meetings, exchange of material, and a small number of sub group meetings and strong co-ordination.