Question 1

RISQ Q5.1 requires the Oil Record Book Part 1 to be completed correctly, with distinct sections for non-automatic bilge discharge (D), automatic discharge systems (E), oil filtering equipment defects (F), accidental discharges (G), bunkering (H), and voluntary bilge-holding-tank declarations (I). Why does the ORB use this many separate, specific sections rather than one general "discharge log"?

Accepted Answer

Each section corresponds to a distinct operational scenario with its own compliance requirements and risk profile — collapsing them into one general log would make it impossible to verify which specific control applied at the time (e.g. whether the oil filtering equipment was working, or whether a discharge was accidental versus routine), which is exactly what an inspector or investigator needs to establish after the fact This structure is what makes the ORB forensically useful, not just a record-keeping formality — a code "I" entry (filtering equipment defective, valve sealed shut) tells a very different story from a code "G" entry (accidental discharge), and conflating them would defeat the purpose of being able to reconstruct exactly what happened and why during any given discharge event.

Question 2

RISQ's guidance on emergency bilge suction and overboard discharge valves (Q5.13) states that sealing these valves in the closed position "shall not be construed as a requirement for the valve to be blanked or physically locked" and that the valve "shall always remain available for use in case of an emergency." Why does the regulation deliberately avoid a method (like a padlock) that would make the valve harder to open?

Accepted Answer

A numbered breakable seal achieves the pollution-prevention control (detecting and recording any unauthorised opening) without compromising the valve's availability for genuine emergency use — a padlock or blank would prevent accidental/unauthorised discharge equally well, but could also delay or block legitimate emergency use when the valve is actually needed, which is an unacceptable trade-off for an emergency-designated valve This is a deliberately balanced control: the breakable-seal method satisfies the pollution-prevention need (you can tell if the valve was opened without authorisation, and a record trail exists) while preserving the valve's core purpose as an emergency device that must never be genuinely obstructed. A method that fully prevented opening would defeat the valve's reason for existing.

Question 3

RISQ Q5.10-5.11 require a ballast water treatment system (where fitted) to be in good order with officers familiar with its safe operation, plus an approved Ballast Water Management Plan and Record Book. Given that Tokyo MoU's 2025 joint CIC specifically targeted Ballast Water Management deficiencies, what does "officers familiar with its safe operation" mean in practice, beyond simply operating the system's normal start/stop sequence?

Accepted Answer

Genuine familiarity includes understanding the D-2 performance standard the system must meet, recognising when treatment additives/chemicals require safe handling precautions, knowing how to respond to a system failure or non-compliant treatment result, and maintaining the system per the PMS — not just running it under normal conditions when everything works as expected This mirrors the Human Factors principle seen throughout this module: an officer who can switch the system on but cannot explain the performance standard it is meant to achieve, or what to do when treatment results are non-compliant, has not demonstrated the depth of understanding inspectors (and the BWM CIC specifically) are looking for — operating a system and genuinely understanding it are different things.

Vetting — RISQ Pollution Prevention Practice Questions