In recent years there has been substantial interest and growing demand for ships to navigate in cold regions. One reason for this is the emergence of new trade routes in cold regions, which pose new design conditions and challenges. In addition, not all builders have experience of designing ships intended for ice and cold environments. As a result there is a pressing need for rules and standards to give clear requirements for shipbuilders to develop suitable designs for cold climate operation. This paper provides an insight into the background and development of winterisation rules, an introduction to the framework of the rules and explanation of some of the key features.

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