Recent developments in training and assessment have focused on training of non-technical skills. The maritime industry has made significant investments in training and assessment in safety. Previous literature has discussed whether training an assessment pays off in terms of improved safety at the sharp end. However, they have not provided ample evidence on the effectiveness of CRM training on safety. The report also gives an overview of maritime transport. The emphasis here is maritime transport’s safety performance compared to other transport modes. Resource Management and Simulation-Based Training have been introduced in the maritime industry. The aim of the thesis is to document the effectiveness of training and assessment. The method will be a literature review on the effectiveness of team training.