What is the purpose of a tank-entry log or compartment log?

• A. To record atmospheric conditions, entry times, work performed, and safety precautions for traceability.
• B. To record weather only
• C. To log fuel consumption
• D. To log crew leave

Answer: (A)

The main idea is to maintain safety and accountability for any entry into a tank or compartment. A tank-entry log serves as the official record of what happens during entry, including the atmospheric conditions inside the tank (gas test results like oxygen level and presence of hazardous or flammable gases), the exact entry and exit times, the specific work being performed, and the safety precautions in place (such as permits to work, PPE, standby personnel, and pre-entry checks). This creates a traceable history so anyone reviewing the record can see who entered, when, what tasks were done, and what safety measures were used, which is crucial for hazard control and for investigations or audits if something goes wrong. It also supports the permit-to-work process by documenting that entry was authorized and that necessary precautions were followed. This log isn’t intended for weather, fuel consumption, or crew leave, which are tracked in other records.