Which document is commonly signed off as part of post-dive records?

• A. Dive plan
• B. PTD
• C. The medical certificate
• D. The vessel's maintenance log

Answer: (B)

The concept being tested is post-dive record-keeping and formal sign-off. After a dive, a Post-Dive Record (PTD) is completed to document what happened, confirm safe completion, and note any issues, equipment status, gas usage, and surface intervals. This record is signed off by the dive supervisor to authorize the dive’s conclusion and ensure accountability and traceability for safety and operations. The dive plan is prepared before the dive and guides what will be done, so it belongs in pre-dive planning rather than post-dive records. The medical certificate is a health-related document, not part of the dive’s operational record, and the vessel’s maintenance log tracks equipment upkeep rather than the execution and outcomes of a dive. Hence the PTD is the standard post-dive document to sign off.