This book sets out to document the practices which are used to handle tug barge systems in port and at sea. The main focus concerns operations on the West coast of the USA and Canada. However the hard lessons learnt there will transfer into other areas around the world so making this book a valuable source of reference for tug operators generally. The book includes the new certificate standards required by the USCG and also the results of a major study into bridge allisions in American Rivers. The main chapters cover: Boat handling; Towing equipment; Ocean Towing; Towing and manoeuvering barges in harbours, bays and rivers; Towing close astern; Multiple barge towing; Special tows and disabled ships; Fleet towing/dead ship movements; Pivot Point; Watchstanding priorities; Command; Conclusio