What is the minimum height of coaming required on the deck of tank ships?

The minimum height of coaming required on the deck of tank ships is established to ensure the safe containment of liquid substances, preventing spills or leaks that could pose environmental hazards. A height of 4 inches is specified in international regulations as it effectively minimizes the risk of overflow during normal operations, such as loading and unloading of cargo.

The coaming acts as a barrier to water and other liquids, aiding in the prevention of hazardous materials from escaping the tank area. It is designed to accommodate various natural conditions, such as waves and rainfall, maximizing the integrity of the containment system while not overly restricting operational activities on the deck.

Meeting this threshold is crucial for compliance with safety regulations and for the protection of marine environments, underscoring its importance in tank ship design and operation. This requirement reflects a balance between safety, functionality, and practical operational considerations in maritime operations.