The National Laboratory of Health, Environment and Food is the central and the largest Slovenian laboratory for public health, dealing with hygienic and health related ecological activities, environment protection problems, microbiological diagnostics and chemical analyses of different kind of samples and research activities. In the laboratory we perform the services forgovernmental needs, first of all for monitoring and official inspection and supervision from the competencies of the Ministry of Health, Ministry of Agriculture, Forestry and Food and Ministry of the Environment and Spatial Planning, free capacities are offered to customers on the open market. In cooperation with other institutions in Slovenia and abroad, the NLZOH cooperates in national and international research, applicative and advisory projects.