The Dutch have a long history of river transport with large rivers such as the Rijn, Maas and Schelde traversing the country. These waterways are used to carry a wide diversity of goods including dangerous substances within the Netherlands and to and from Germany and Belgium. Although accidents are rare, the consequences of ship collisions could be great and DNV has been involved ever since the first initiatives were taken to monitor risks. Their earlier work on the development of a nautical Quantitative Risk Assessment (QRA) and a methodology to assess ship collisions based on the impact energy is now to be formalized into a Dutch guideline called Risk Analysis Sea and River Transport.