When is a vessel required to perform a Declaration of Inspection?

A Declaration of Inspection (DOI) is a critical document that ensures safety and compliance during cargo operations, particularly on tankers. The requirement to perform a DOI prior to cargo operations serves several important purposes. It confirms that the vessel and terminal are prepared for the transfer of cargo, outlines the safety measures that will be in place, and ensures both parties are aware of their obligations and the condition of the equipment.

By conducting the DOI before cargo operations, both the vessel crew and terminal staff can identify any issues that may affect safety or environmental protection, such as the condition of cargo tanks or equipment readiness. This proactive approach helps prevent accidents and spills during the cargo transfer, which is essential in maintaining compliance with regulations and ensuring the safety of personnel and the environment.

In contrast, performing a DOI prior to ballasting, unloading, or inspections does not directly address the specific interactions and risks associated with cargo transfer, thus making it less relevant for ensuring safety during that critical phase.