[en] The ASSET programme provides an international mechanism for determining procedures to prevent incidents and accidents in nuclear facilities. The programme deals with, and critically assesses, analyses of incidents and accidents, provides instructions at a general level and gives suggestions and recommendations aimed at increasing the operating nuclear safety standard. ASSET guidelines and regulations are intended to ensure consistency in the application of the team's analytical methods. They serve systematic inspection and help gaining insight into any relevant problem. (M.D.). Diagrams