The Tanker Safety Guide (Liquefied Gas) is the definitive industry best practice guidance for gas carrier operators, and a carriage requirement under the national regulations of many flag States. It is strongly recommended that a copy of the completely revised third edition is carried on board every ship engaged in the transportation of liquefied gas by sea. The fully revised third edition (350 A4 pages with illustrations) replaces and supersedes the previous 1995 edition.