The document summarizes the THESEIS project, which aims to develop an e-learning training model on occupational health and safety for workers in the environmental sector. It is a 24 month project funded by the European Commission and involves 12 partners from 8 EU countries. The project has identified a need for more training on health and safety legislation and technologies for workers in fields like wastewater treatment and waste management. It has developed an online training platform in multiple languages and will pilot and promote the training model.