For barge to barge or ship to barge operations, when should lightering operations cease?

In the context of lightering operations, which involve transferring cargo between vessels, safety is the paramount concern. The correct answer states that lightering operations should cease when waves or swells reach 3 feet. This threshold is established based on safety guidelines and best practices associated with marine operations, where the risk of instability increases as the sea state worsens.

When waves or swells exceed this height, the movements of the vessels can become significantly more unpredictable. The potential for cargo loss or accidents rises due to increased motion, making it difficult for crew members to safely transfer goods between vessels. This height is often cited in operational procedures to ensure that conditions remain within manageable limits, prioritizing the safety of the crew, cargo, and vessels involved in the operation.

Other conditions, such as wind speeds exceeding 30 knots or poor visibility, also negatively impact lightering operations. However, in this specific instance, the focus on wave height delineates a clear operational boundary that is widely recognized in maritime practices. Being aware of these thresholds helps ensure that maritime operations can be conducted safely and efficiently.