Which item is included in the DC Closure log?

• A. Signature of person granting permission
• B. Weather data
• C. Hull thickness measurements
• D. Fuel quantity

Answer: (A)

Documentation of authorization is essential in DC closure actions, because when you close a space to contain damage or isolate a compartment, you must have explicit permission from the person in command. The signature on the DC Closure log provides proof who approved the closure and when, creating a traceable record that supports accountability and helps prevent unauthorized actions during casualty response and later reviews. Other items like weather data, hull thickness measurements, and fuel quantity belong in different records or logs—weather data for safety and operations, hull thickness as part of maintenance/structural checks, and fuel quantity in engineering/fuel logs—so they aren’t part of the closure log.