This book contains important advice and guidance for your safety while serving on board liquefied gas carriers. It explains the hazards associated with the variety of products that may be carried on board and addresses the steps needed to protect yourself, the environment, your colleagues and the cargo carried.

Most liquefied gases are hydrocarbons and the main property that makes hydrocarbons the world’s primary energy source – combustibility – also makes them hazardous. Because these products are handled in large quantities, it is necessary to minimise leakage and control all sources of ignition.

Gas carriers are robustly designed and constructed and the majority of hazards are minimised by strict compliance with the design requirements of the International Maritime Organization (IMO) and other organisations. Gas carriers are inspected regularly throughout the world to ensure that the requirements of the IMO rules continue to be met.

You are not expected to be fully conversant with all of the rules – but you are expected to take care, avoid risks and follow instructions.

This booklet has been produced to assist you, warn you of hazards that may exist and give guidance on how the risks may be effectively managed.