Engine Room MARPOL Annex I Daily Operations Log

This template covers the core engine-room checks tied to MARPOL Annex I bilge pollution control: the oily water separator, the 15 ppm bilge alarm, overboard valve security, bilge-well soundings, and Oil Record Book Part I entries. It is designed to capture what the duty engineer or chief engineer verifies each day and what gets escalated when something is out of tolerance. It is not a general maintenance log or a full engine-room rounds sheet.

Use it daily, with the specific checks performed during the vessel’s routine engine-room verification window. Some items may reference a last test date or a weekly functional test, but the log itself is meant to be completed every day. If a vessel has a different watch structure, keep the recurrence daily and assign the DRI for each shift or day.

The chief engineer or duty engineer typically completes the log, with the master notified for any seal break, discharge irregularity, or record discrepancy. The person signing should be able to verify the equipment condition, the log entries, and the discharge status firsthand. If your vessel uses a delegated watchkeeping structure, keep the DRI explicit so accountability is clear.

Yes, it is intended for vessels that operate an oily water separator and maintain bilge-water records under MARPOL Annex I. If your operation does not discharge bilge water overboard or uses a different waste-handling setup, you may need to remove or rewrite the discharge-related items. The template is most useful where bilge management, alarm testing, and Oil Record Book documentation are part of daily compliance.

Teams often miss the difference between a physical check and a paper check, so the equipment looks fine on paper even when the alarm, valve seal, or discharge record is incomplete. Another common issue is inconsistent Oil Record Book entries, especially missing quantities, positions, or disposal methods. This template forces each item to be independently verifiable so gaps are easier to catch before an inspection.

The checklist aligns daily verification with the recordkeeping and operational controls expected under MARPOL Annex I. It helps document that the OWS, 15 ppm alarm, and discharge controls were checked, and that bilge transfers were recorded correctly. It also creates a clear trail for exceptions, which is important when a seal is broken, a test is overdue, or an entry needs correction.

Yes, and you should. You can add vessel-specific equipment names, local reporting steps, DRI fields, or a verification step for your company’s internal permit-to-discharge process. Keep the checklist items atomic and avoid combining multiple checks into one line, so each item still has a clear yes/no outcome.

An ad-hoc round depends on memory and informal notes, which makes it easy to miss a seal issue, skip a test date, or leave an Oil Record Book entry incomplete. This template turns the round into a repeatable checklist with a defined recurrence and an audit trail. That makes it easier to hand off between watches and easier to review during inspections.