Introduction. An overview of the subject of DP, Background to the development. The basic DP function, Systems. An outline of the whole-ship view of the DP system, together with an item-by-item discussion of the various elements of hardware making up a DP system. Position Reference Systems. A description of the operational principles and practical use of the commonest position references. The pooling of PRSs into the DP system. Thrusters and Manoeuvring Systems. A detailed look at the different types of thrusters and propulsion systems, their operational characteristics and failure modes. Power Systems. Power generation, distribution and management systems. Power system protection systems. The arrangements in Diesel-electric and other vessels. DP Operations and vessel types. A detailed look at the different types of operation which may make use of DP, and the practice aboard such vessels - Offshore support vessels, Dive support - Offshore drilling - Pipelay, trenching and rockdumping - cable lay and repair - Survey, ROV support - FPSO and Offtake tanker operations - Miscellaneous types (dredging, heavy lift, crane ops). Specialist functions on the console (Autotrack, external force compensation, Follow-Sub, Anchor Assist, Etc.)System Redundancy. Equipment Classes. IMC and other guideline requirements. The provision of redundancy in the various areas of the system. Watchkeeping. Bridge watchkeeping practice and procedures. The planning and execution of DP operations. Shallow water problems. The UTM co- ordinate system. Checklists and records. DP seamanship'. Human factors. n Industrial and Charterers Requirements and Considerations. Audits. Assessment of vessel capability. The roles of bodies such as the HSE Offshore Safety Division. IMCA, the Nautical Institute, Classification Societies, UKOOA. Training, qualifications and competence.