Which two documents constitute ballast water management compliance?

• A. Ballast Water General Certificate and Ballast Water Report
• B. Ballast Water Record Book and Ballast Water Management Plan
• C. Ballast Water Management Certificate only
• D. Ballast Water Management (BWM) Certificate and Ballast Water Record Book

Answer: (D)

The essential idea is that ballast water management compliance is shown by both official authorization and the on-board records of how ballast water is handled. The Ballast Water Management Certificate is the flag state’s formal endorsement that the vessel’s ballast water management meets the required standards; it proves the ship is authorized to operate under the agreed ballast water rules. The Ballast Water Record Book, on the other hand, provides a running log of all ballast water operations and management actions taken on board—taken on, discharged, treated, and any deviations or incidents. This record is the traceable evidence inspectors use to verify ongoing compliance during voyages and port state checks.

Having only a management plan or a management plan plus some other document is not enough by itself to prove compliance, because a plan shows intent and procedure but not actual execution or verification. The two documents together—certificate and record book—cover both the authorization to operate under the ballast water regime and the performed actions that demonstrate compliant operation.