Are there effective policies. other than vassal design (which is addre
ssed by the Oil Pollution Act of 1990) for reducing the vessel damage
severity (and the subsequent oil spillage) of tanker accidents? This p
aper addresses this question by investigating determinants of accident
severity. The results suggest that effective policies. other than ves
sel design, may not exist for tanker collision accidents, but do exist
for accidents which involve grounding and/or material/equipment failu
re. For grounding accidents. these policies are to: increase the regul
ation and/or regulation enforcement of foreign flag tankers. and incre
ase the regulation enforcement of tankers when vessel repair prices en
d oil prices are relatively low. For material/equipment failure accide
nts. these policies are to: increase the regulation and/or regulation
enforcement of older tankers. and require greater use of licensed mann
ed operators.