Abstract: Loading of tank lorries with petroleum products at refineries is associated with spillage that can cause fire and explosion. Reviewing incident reports showed that the overflow prevention system for both the lorry and the depot as well as mistakes made by the driver cause the highest number of incidents. Therefore, improving the existing loading systems including man-machine interaction could minimize the likelihood of spillage. This paper analyzes and recommends improvements to the existing loading systems by means of identifying and eliminating the main causes of the incidents. Copyright \ua9 2007 IFA