Engine Room MARPOL Annex I Daily Operations Log

This template covers the core daily checks tied to MARPOL Annex I engine room compliance: oily water separator performance, 15 ppm bilge alarm verification, Oil Record Book Part I entries, and bilge-well management. It is designed to capture the operational evidence a chief engineer or duty engineer needs during routine rounds. It does not replace the Oil Record Book itself; it supports the daily verification around it.

The chief engineer or duty engineer typically owns the log, with entries made by the person actually performing the inspection or verification. A clear DRI helps avoid gaps between watchkeepers, especially during shift changes or port calls. If your vessel uses a handover process, the outgoing engineer should close open items and the incoming engineer should confirm status.

This is a daily log, so it should be completed once per day or once per watch if your vessel’s procedures require more frequent verification. The recurrence should match your shipboard SMS and the cadence of bilge and OWS operations. If the separator is not in use on a given day, the log still helps document the reason and the standby condition.

No. It is useful even when the oily water separator is in standby, because compliance depends on the equipment condition, alarm readiness, and recordkeeping. Many findings come from incomplete logs, missing verification steps, or unclear notes during non-discharge periods. The template helps document both active use and non-blocking standby checks.

It supports MARPOL 73/78 Annex I operational controls and the equipment expectations associated with MEPC.107(49) for oily water separator and 15 ppm alarm performance. It also reinforces disciplined Oil Record Book Part I entries, which are often reviewed alongside engine room logs. Local flag-state, class, and company SMS requirements may add more checks.

Common mistakes include recording the OWS as checked without verifying the alarm, leaving bilge-well status undocumented, and making ORB entries that do not match the day’s operations. Another frequent issue is using vague notes instead of independently verifiable checklist items. This template pushes the crew toward yes/no/N/A evidence and reduces ambiguity during audits.

Yes. You can tailor the checklist items to your ship type, machinery layout, bilge system configuration, and company SMS terminology. Many operators also add vessel-specific verification steps, such as seal checks, sample line inspections, or transfer pump status. Keep the core compliance items intact so the log still maps cleanly to Annex I expectations.

Ad-hoc notes are easy to miss, hard to audit, and often inconsistent between engineers. This template standardizes the daily verification sequence so the same critical items are checked and recorded every time. That makes handovers clearer, supports faster review, and gives you a cleaner trail when someone asks how the vessel stayed in compliance.

Yes. It pairs well with maintenance tasks, defect reports, permit-to-work records, and Oil Record Book workflows. If your process uses digital task management, the log can be linked to corrective actions when a check fails or a non-blocking issue needs follow-up. That keeps compliance observations from getting lost after the watch ends.