There can be many participants involved in the packaging and transport of dangerous goods before they are loaded onto a ship, including supplier, road or rail carrier, freight consolidator, and stevedore. The safety of the marine transport operation depends on the reliable and conscientious performance of these participants. Wang and Foinikis (2001), in their formal safety assessment of container ships, observed that shore error accounts for a high percent- age of all major loss incidents. Darbra and Casal’s (2004) study of major accidents involving hazardous materials at port facilities found impact to be a predominant cause, including ship/land, ship/ship, and land vehicle collisions. This observation was based on data for accidents that occurred during transport, processing and storage of hazardous substances. A study specifically focused on releases of containerized dangerous goods during sea transport was not found in the literature.