Description

A Guide for Correct Entries in the ORB Part I – Machinery Space Operations, 4th Edition

The oil record book part 1 guide is an essential reference for ensuring accurate and compliant recording of machinery space operations onboard ships. It provides detailed guidance on how to complete ORB entries correctly, helping crews meet MARPOL requirements and avoid costly compliance issues.

This guide explains the full range of operations that must be recorded, including bunkering, oil transfers, sludge handling, bilge water management, and disposal procedures. It also highlights common mistakes and provides practical examples to help officers maintain accurate and consistent records.

The publication supports environmental compliance with the International Maritime Organization (IMO) and MARPOL Annex I, ensuring vessels operate responsibly and meet international pollution prevention standards.

Why This Oil Record Book Part 1 Guide is Essential for MARPOL Compliance

Incorrect ORB entries can lead to serious regulatory consequences, including fines and detentions. This guide helps officers understand what must be recorded, how to record it correctly, and how to maintain full transparency in oil and oily water operations.

For broader compliance and safety management, this guide works effectively alongside ISM Code – International Safety Management Code and IMO 2020 MARPOL Annex VI Guide, supporting regulatory understanding and onboard procedures.

It also complements engineering and operational resources available in the engineering and industry bodies book collection, helping crews integrate compliance with daily operations.

Who Should Read This Oil Record Book Part 1 Guide?

This book is essential for Chief Engineers, engineering officers, Masters, and crew responsible for machinery space operations and environmental compliance. It is also valuable for shipping companies, auditors, and training providers focused on MARPOL compliance.

Whether used for onboard reference, inspections, or training, this guide provides the knowledge needed to maintain accurate ORB records and meet international environmental standards.

Oil Record Book Contents Listing: 

1. Foreword

2. Preface

2.1 Scope of the Guide 

2.2 Objectives of the Guide 

2.3 Introduction to operational procedures 

2.4 Responsibilities for shore and shipboard personnel

3. Items to be recorded

3.1 Introductory notes 

3.2 List of items to be recorded, interpretations and clarifications 

4. Detailed Examples for Related Operations

BUNKERS 

4.1 Bunkering of fuel 12 

4.2 Bunkering of lubricating oil in bulk 

OILY BILGE WATER HANDLING 

4.3 Pumping of bilge water from engine-room bilges to an oily bilge water holding tank 

4.4 Discharge of bilge water through the 15 ppm bilge separator taking suction from an oily bilge water holding tank 

4.5 Discharge of bilge water through the 15 ppm bilge separator taking suction from engine room bilge wells 

4.6 Disposal of bilge water from an oily bilge water holding tank to shore reception facilities 

4.7 Transfer (disposal) of bilge water from oily bilge water holding tank to a slop tank 

SLUDGE HANDLING 

4.8 Weekly recording of the contents of oil residue (sludge) tanks 

4.9 Oil residues (sludge) collected by manual operation in oil residue (sludge) tank 

4.10 Transfer of sludge between oil residue (sludge) tanks 

4.11 Draining of settled water from an oil residue (sludge) tank to an oily bilge water holding tank 

4.12 Heating of oil residue (sludge) as a method of reducing its volume by evaporation 

4.13 Sludge incineration 

4.14 Sludge disposal to port reception facilities 

4.15 Transfer (disposal) of sludge from oil residue (sludge) tank to slop tanks 

OTHER OPERATIONAL PROCEDURES 

4.16a Failure of the 15 ppm bilge separator, 15 ppm bilge alarm or automatic stopping device 

4.16b Sealing of 15 ppm bilge separator overboard valve when the separator has failed 

4.17a When proper operation of the 15 ppm bilge separator, 15 ppm bilge alarm or automatic stopping device has been restored 

4.17b Breaking of seal of the 15 ppm bilge separator overboard valve when the operation of the separator has been restored 

4.18a Missed operational entry 

4.18b Incorrect entry 

4.19 De-bunkering of fuel oil (in case of out-of-spec fuel) 

4.20 Entry cannot be entirely written in one page 

4.21 Emptying and filling of bilge separation unit for maintenance purposes 

5. Additional Clarifications
6. Authors’ References

This guide is an essential compliance tool for vessels aiming to maintain accurate Oil Record Book entries and meet MARPOL requirements. By providing clear instructions and practical examples, it helps crews avoid errors, ensure transparency, and operate in line with international environmental standards.

Frequently Asked Questions

What is the Oil Record Book Part 1 guide used for?

This guide helps officers correctly complete ORB Part I entries related to machinery space operations and oil management.

Who should use this ORB Part 1 guide?

It is suitable for Chief Engineers, engineering officers, Masters, and crew responsible for environmental compliance.

Does it cover MARPOL requirements?

Yes, it aligns with MARPOL Annex I and IMO regulations for oil record keeping.

What operations are included in the guide?

It covers bunkering, sludge handling, bilge water management, oil transfers, and disposal procedures.

Is this guide useful for audits and inspections?

Yes, it is highly valuable for ensuring compliance during Port State Control inspections and internal audits.