The Global Maritime Distress and Safety System (GMDSS) provides a fast and efficient way of calling for assistance at sea, whatever the size of craft or its geographical position. Since it was first published, this book has helped explain the system for anyone using GMDSS and has been excellent pre-course reading for students. Denise Bréhaut explains the operation of the system as a whole and the procedures involved, as well as covering the syllabi of the General Operator’s Certificate (GOC), the Long Range Certificate (LRC), the Restricted Operator’s Certificate (ROC) and the Short Range Certificate (SRC).