Light end materials, such as LNG or LPG, have poor safety reputation because of a few famous incidents such as Cleveland, Feyzin, Los Alfaques and Mexico City but when handled properly by well-trained personnel in correctly design installations, they present no more risk than other energy sources. This booklet raises the awareness of operators, engineers and technicians to the main hazards of light ends (methane to penthane). Using examples of actual accidents, enabling operators to spot and rectify potential hazards before incidents occur.