Electromagnetic field (emf) has become a topic of europe-wide discussion. The latter has created uncertainty regarding possible adverse health effects for both the population and industry. Current research is characterized by conficting data from epidemiological and animal studies, especially with respect to possible risk of cancer at different sites and neurological disorders. Clearly, mere continuation or replication of research, without introducing innovatives concepts, willprolong the uncertainty as to whether emfs do, or do not, represent a health risk. The results of this joint project, which will investigate molecular and functional responses of living cells to emfs in vitro by applying state-of-the-art methods od molecular biology and toxicology, are needed urgently for molecular epidemiological studies, which are probably the only path to a reliable risk estimate for possible effects of emfs on human health.