How often do the Chief Engineer and the Commanding Officer sign the engineering log?

The frequency with which the Chief Engineer and the Commanding Officer sign the engineering log reflects their respective roles and responsibilities in the maintenance of accurate and timely documentation pertaining to the ship's operational status. The Chief Engineer typically signs the engineering log daily because it is crucial for tracking daily operations, systems performance, maintenance activities, and any anomalies that may impact the engine room and its components. This daily oversight ensures that any significant incidents or changes are recorded immediately, supporting ongoing operation and safety.

On the other hand, the Commanding Officer usually signs the engineering log on a monthly basis. This less frequent signing aligns with their broader command responsibilities, as they focus on overall mission execution and management rather than the day-to-day operations of engineering systems. Their monthly review of the log allows them to maintain an authoritative check on engineering operations while delegating the detailed daily oversight to the Chief Engineer.

This division of responsibilities ensures that both leadership tiers understand the current state of engineering operations while allowing for a clear and manageable record-keeping system.