The water industry accredited National Water Hygiene Card Course is designed for those who work in the production of drinking water supplied by the regional water companies. The course objective is to provide a basic understanding of how important it is to maintain good hygiene standards whilst working with potable water. It has been developed by Energy and Utility Skills and holders of this card will appear on the the Energy and Utility Skills Register (EUSR). In the industry the Water Hygiene Card is often referred to as ‘the blue card‘.