Who prepares the SOSMIL document?

The SOSMIL (Shipboard Operating System Maintenance Instruction List) document is prepared by a designated person assigned by the Ship's Force Commanding Officer (CO). This choice is correct because the Ship's Force CO oversees the operations and personnel on board the vessel, ensuring that there is a structured approach to managing the ship’s operational instructions, including maintenance activities. The designated individual is typically someone with the expertise and familiarity with the ship's systems, which allows them to accurately compile the necessary information into the SOSMIL document. This ensures that all maintenance tasks are documented appropriately and can be communicated effectively to the crew for operational reliability and safety.

The other options do not reflect the standard process for preparing the SOSMIL document. The ship's captain, while instrumental in overall ship operations, does not typically handle this specific documentation directly. The chief engineer and the maintenance officer may have significant roles concerning maintenance but are not necessarily the individuals designated by the Ship's Force CO for this specific task.