Volume

Volume

INTERNATIONAL MARITIME

DANGEROUS GOODS CODE

2012 EDITION

IncorporatIng amendment 36-12

London, 2012

Published in 2012

by the INTERNATIONAL MARITIME ORGANIZATION

4 Albert Embankment, London SE1 7SR

www.imo.org

Printed in the United Kingdom by CPI Books Limited, Reading RG1 8EX

ISBN: 978-92-801-1561-1

IMO PUBLICATION

Sales number: II200E

Copyright © International Maritime Organization 2012

All rights reserved.

No part of this publication may be reproduced,

stored in a retrieval system, or transmitted in any form or by any means,

without prior permission in writing from the

International Maritime Organization.

This publication has been prepared from official documents of IMO, and every effort has been

made to eliminate errors and reproduce the original text(s) faithfully. Readers should be aware that,

in case of inconsistency, the official IMO text will prevail.

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Contents

Foreword

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

Preamble

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

PART 1 – GeNeRAl PRoVISIoNS, DeFINITIoNS AND TRAINING

Chapter 1.1 General provisions

1.1.0 Introductory note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.1

Application and implementation of the Code . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1.2 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1.3 Dangerous goods forbidden from transport . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Chapter 1.2 Definitions, units of measurement and abbreviations

1.2.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.2.2 Units of measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1.2.3 List of abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Chapter 1.3 Training

1.3.0 Introductory note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
1.3.1 Training of shore-side personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Chapter 1.4 Security provisions

1.4.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
1.4.1 General provisions for companies, ships and port facilities . . . . . . . . . . . . . 31
1.4.2 General provisions for shore-side personnel . . . . . . . . . . . . . . . . . . . . . . . . . 31
1.4.3 Provisions for high consequence dangerous goods . . . . . . . . . . . . . . . . . . . . 32

Chapter 1.5 General provisions concerning class 7

1.5.1 Scope and application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
1.5.2 Radiation protection programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
1.5.3 Quality assurance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
1.5.4 Special arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
1.5.5 Radioactive material possessing other dangerous properties . . . . . . . . . . . . 37
1.5.6 Non-compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

PART 2 – ClASSIFICATIoN

Chapter 2.0 Introduction

2.0.0 Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
2.0.1 Classes, divisions, packing groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
2.0.2 UN Numbers and Proper Shipping Names . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2.0.3 Classification of substances, mixtures and solutions with

multiple hazards (precedence of hazard characteristics) . . . . . . . . . . . . . . . . 43

2.0.4 Transport of samples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
2.0.5 Transport of wastes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

contents

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Chapter 2.1 Class 1 – explosives

2.1.0 Introductory notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
2.1.1

Definitions and general provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

2.1.2 Compatibility groups and classification codes . . . . . . . . . . . . . . . . . . . . . . . . 48
2.1.3 Classification procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Chapter 2.2 Class 2 – Gases

2.2.0 Introductory note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
2.2.1 Definitions and general provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
2.2.2 Class subdivisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
2.2.3 Mixtures of gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Chapter 2.3 Class 3 – Flammable liquids

2.3.0 Introductory note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
2.3.1 Definitions and general provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
2.3.2 Assignment of packing group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
2.3.3 Determination of flashpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
2.3.4 Determination of initial boiling point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Chapter 2.4 Class 4 – Flammable solids; substances liable

to spontaneous combustion; substances which,

in contact with water, emit flammable gases

2.4.0 Introductory note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
2.4.1 Definition and general provisions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
2.4.2 Class 4.1 – Flammable solids, self-reactive substances and

solid desensitized explosives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

2.4.3 Class 4.2 – Substances liable to spontaneous combustion . . . . . . . . . . . . . . 70
2.4.4 Class 4.3 – Substances which, in contact with water, emit flammable gases 71
2.4.5 Classification of organometallic substances . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Chapter 2.5 Class 5 – oxidizing substances and organic peroxides

2.5.0 Introductory note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
2.5.1 Definitions and general provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
2.5.2 Class 5.1 – Oxidizing substances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
2.5.3 Class 5.2 – Organic peroxides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Chapter 2.6 Class 6 – Toxic and infectious substances

2.6.0 Introductory notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
2.6.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
2.6.2 Class 6.1 – Toxic substances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
2.6.3 Class 6.2 – Infectious substances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Chapter 2.7 Class 7 – Radioactive material

2.7.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
2.7.2 Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Chapter 2.8 Class 8 – Corrosive substances

2.8.1 Definition and properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
2.8.2 Assignment of packing groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

contents

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Chapter 2.9 miscellaneous dangerous substances and articles

(class 9) and environmentally hazardous substances

2.9.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
2.9.2 Assignment to class 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
2.9.3 Environmentally hazardous substances (aquatic environment) . . . . . . . . . . . 121
2.9.4 Lithium batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Chapter 2.10 marine pollutants

2.10.1 Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
2.10.2 General provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
2.10.3 Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

PART 3 – DANGeRouS GooDS lIST, SPeCIAl PRoVISIoNS AND eXCePTIoNS

See volume 2

PART 4 – PACKING AND TANK PRoVISIoNS

Chapter 4.1 use of packagings, including intermediate bulk

containers (IBCs) and large packagings

4.1.0 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
4.1.1 General provisions for the packing of dangerous goods in packagings,

including IBCs and large packagings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

4.1.2 Additional general provisions for the use of IBCs . . . . . . . . . . . . . . . . . . . . . . 141
4.1.3 General provisions concerning packing instructions . . . . . . . . . . . . . . . . . . . 141
4.1.4 List of packing instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Packing instructions concerning the use of packagings

(except IBCs and large packagings) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Packing instructions concerning the use of IBCs . . . . . . . . . . . . . . . . . . . . 200
Packing instructions concerning the use of large packagings . . . . . . . . . . 204

4.1.5 Special packing provisions for goods of class 1 . . . . . . . . . . . . . . . . . . . . . . . 206
4.1.6 Special packing provisions for goods of class 2 . . . . . . . . . . . . . . . . . . . . . . . 207
4.1.7 Special packing provisions for organic peroxides (class 5.2)

and self-reactive substances of class 4.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

4.1.8 Special packing provisions for infectious substances of category A

(class 6.2, UN 2814 and UN 2900) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

4.1.9 Special packing provisions for class 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Chapter 4.2 use of portable tanks and multiple-element

gas containers (meGCs)

4.2.0 Transitional provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
4.2.1 General provisions for the use of portable tanks for the transport

of substances of class 1 and classes 3 to 9 . . . . . . . . . . . . . . . . . . . . . . . . . . 215

4.2.2 General provisions for the use of portable tanks for the transport

of non-refrigerated liquefied gases and chemicals under pressure . . . . . . . . 218

4.2.3 General provisions for the use of portable tanks for the transport

of refrigerated liquefied gases of class 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

4.2.4 General provisions for the use of multiple-element gas containers (MEGCs) 220
4.2.5 Portable tank instructions and special provisions . . . . . . . . . . . . . . . . . . . . . 221

Portable tank instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Portable tank special provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

4.2.6 Additional provisions for the use of road tank vehicles . . . . . . . . . . . . . . . . . . 232

contents

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Chapter 4.3 use of bulk containers

4.3.1 General provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
4.3.2 Additional provisions applicable to bulk goods

of classes 4.2, 4.3, 5.1, 6.2, 7 and 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

4.3.3 Additional provisions for the use of sheeted bulk containers (BK1) . . . . . . . . 235
4.3.4 Additional provisions for the use of flexible bulk containers (BK3) . . . . . . . . . 235

PART 5 – CoNSIGNmeNT PRoCeDuReS

Chapter 5.1

General provisions

5.1.1 Application and general provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
5.1.2 Use of overpacks and unit loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
5.1.3 Empty uncleaned packagings or units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
5.1.4 Mixed packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
5.1.5 General provisions for class 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
5.1.6 Packages packed into a cargo transport unit . . . . . . . . . . . . . . . . . . . . . . . . . 243

Chapter 5.2 marking and labelling of packages including IBCs

5.2.1 Marking of packages including IBCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
5.2.2 Labelling of packages including IBCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Chapter 5.3 Placarding and marking of cargo transport units

5.3.1 Placarding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
5.3.2 Marking of cargo transport units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255

Chapter 5.4 Documentation

5.4.1 Dangerous goods transport information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
5.4.2 Container/vehicle packing certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
5.4.3 Documentation required aboard the ship . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
5.4.4 Other required information and documentation . . . . . . . . . . . . . . . . . . . . . . . 264
5.4.5 Multimodal Dangerous Goods Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
5.4.6 Retention of dangerous goods transport information . . . . . . . . . . . . . . . . . . . 268

Chapter 5.5 Special provisions

5.5.1 [Reserved] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
5.5.2 Special provisions applicable to fumigated cargo transport units (UN 3359) 269
5.5.3 Special provisions applicable to packages and cargo transport units containing

substances presenting a risk of asphyxiation when used for cooling or
conditioning purposes (such as dry ice (UN 1845) or nitrogen, refrigerated liquid
(UN 1977) or argon, refrigerated liquid (UN 1951)) . . . . . . . . . . . . . . . . . . . . . . 270

PART 6 – CoNSTRuCTIoN AND TeSTING oF PACKAGINGS, INTeRmeDIATe BulK

CoNTAINeRS (IBCs), lARGe PACKAGINGS, PoRTABle TANKS,

mulTIPle-elemeNT GAS CoNTAINeRS (meGCs) AND

RoAD TANK VeHICleS

Chapter 6.1 Provisions for the construction and testing of packagings

(other than for class 6.2 substances)

6.1.1 Applicability and general provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
6.1.2 Code for designating types of packagings . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
6.1.3 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
6.1.4 Provisions for packagings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
6.1.5 Test provisions for packagings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288

contents

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Chapter 6.2 Provisions for the construction and testing of pressure

receptacles, aerosol dispensers, small receptacles

containing gas (gas cartridges) and fuel cell cartridges

containing liquefied flammable gas

6.2.1 General provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

6.2.2 Provisions for UN pressure receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298

6.2.3 Provisions for non-UN pressure receptacles . . . . . . . . . . . . . . . . . . . . . . . . . 309

6.2.4 Provisions for aerosol dispensers, small receptacles containing gas

(gas cartridges) and fuel cell cartridges containing liquefied flammable gas 310

Chapter 6.3 Provisions for the construction and testing of packagings

for class 6.2 infectious substances of category A

6.3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

6.3.2 Provisions for packagings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

6.3.3 Code for designating types of packagings . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

6.3.4 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

6.3.5 Test provisions for packagings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

Chapter 6.4 Provisions for the construction, testing and approval

of packages and material of class 7

6.4.1 [Reserved] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

6.4.2 General provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

6.4.3 Additional provisions for packages transported by air . . . . . . . . . . . . . . . . . . 318

6.4.4 Provisions for excepted packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318

6.4.5 Provisions for industrial packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318

6.4.6 Provisions for packages containing uranium hexafluoride . . . . . . . . . . . . . . . 319

6.4.7 Provisions for Type A packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

6.4.8 Provisions for Type B(U) packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

6.4.9 Provisions for Type B(M) packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

6.4.10 Provisions for Type C packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

6.4.11 Provisions for packages containing fissile material . . . . . . . . . . . . . . . . . . . . . 322

6.4.12 Test procedures and demonstration of compliance . . . . . . . . . . . . . . . . . . . . 324

6.4.13 Testing the integrity of the containment system and shielding

and evaluating criticality safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325

6.4.14 Target for drop tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325

6.4.15 Test for demonstrating ability to withstand normal conditions of transport . . 325

6.4.16 Additional tests for Type A packages designed for liquids and gases . . . . . . 326

6.4.17 Tests for demonstrating ability to withstand accident conditions of transport 326

6.4.18 Enhanced water immersion test for Type B(U) and Type B(M) packages

containing more than 10

5

A

2

and Type C packages . . . . . . . . . . . . . . . . . . . . . 327

6.4.19 Water leakage test for packages containing fissile material . . . . . . . . . . . . . . 327

6.4.20 Tests for Type C packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

6.4.21 Tests for packagings designed to contain uranium hexafluoride . . . . . . . . . . 327

6.4.22 Approvals of package designs and materials . . . . . . . . . . . . . . . . . . . . . . . . . 328

6.4.23 Applications for approval and approvals for radioactive material transport . . 328

6.4.24 Transitional measures for class 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333

contents

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Page

Chapter 6.5 Provisions for the construction and testing

of intermediate bulk containers (IBCs)

6.5.1 General requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335

6.5.2 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337

6.5.3 Construction requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

6.5.4 Testing, certification and inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341

6.5.5 Specific provisions for IBCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342

6.5.6 Test provisions for IBCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347

Chapter 6.6 Provisions for the construction and testing of large packagings

6.6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355

6.6.2 Code for designating types of large packagings . . . . . . . . . . . . . . . . . . . . . . . 355

6.6.3 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355

6.6.4 Specific provisions for large packagings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357

6.6.5 Test provisions for large packagings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Chapter 6.7 Provisions for the design, construction, inspection

and testing of portable tanks and multiple-element

gas containers (meGCs)

6.7.1 Application and general provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

6.7.2 Provisions for the design, construction, inspection and testing of portable tanks

intended for the transport of substances of class 1 and classes 3 to 9 . . . . . 363

6.7.3 Provisions for the design, construction, inspection and testing of portable tanks

intended for the transport of non-refrigerated liquefied gases of class 2 . . . 377

6.7.4 Provisions for the design, construction, inspection and testing of portable tanks

intended for the transport of refrigerated liquefied gases of class 2 . . . . . . . 388

6.7.5 Provisions for the design, construction, inspection and testing

of multiple-element gas containers (MEGCs) intended for
the transport of non-refrigerated gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398

Chapter 6.8 Provisions for road tank vehicles

6.8.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405

6.8.2 Road tank vehicles for long international voyages for substances

of classes 3 to 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405

6.8.3 Road tank vehicles for short international voyages . . . . . . . . . . . . . . . . . . . . . 405

Chapter 6.9 Provisions for the design, construction, inspection

and testing of bulk containers

6.9.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409

6.9.2 Application and general provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409

6.9.3 Provisions for the design, construction, inspection and testing

of freight containers used as BK1 or BK2 bulk containers . . . . . . . . . . . . . . . 409

6.9.4 Provisions for the design, construction and approval of BK1

or BK2 bulk containers other than freight containers . . . . . . . . . . . . . . . . . . . 410

6.9.5 Requirements for the design, construction, inspection and testing

of flexible bulk containers BK3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411

contents

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Page

PART 7 – PRoVISIoNS CoNCeRNING TRANSPoRT oPeRATIoNS

Chapter 7.1 General stowage provisions

7.1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
7.1.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
7.1.3 Stowage categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418
7.1.4

Special stowage provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419

Chapter 7.2 General segregation provisions

7.2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424
7.2.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424
7.2.3 Segregation provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424
7.2.4 Segregation table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425
7.2.5 Segregation groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 426
7.2.6 Special segregation provisions and exemptions . . . . . . . . . . . . . . . . . . . . . . . 426
7.2.7 Segregation of goods of class 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427

Annex: Segregation flow chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429

Chapter 7.3 Consigning operations concerning the packing and use of

cargo transport units (CTus) and related provisions

7.3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431
7.3.2 General provisions for cargo transport units . . . . . . . . . . . . . . . . . . . . . . . . . . 431
7.3.3 Packing of cargo transport units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431
7.3.4 Segregation provisions within cargo transport units. . . . . . . . . . . . . . . . . . . . 432
7.3.5 Tracking and monitoring equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433
7.3.6 Opening and unloading cargo transport units . . . . . . . . . . . . . . . . . . . . . . . . . 433
7.3.7 Cargo transport units under temperature control . . . . . . . . . . . . . . . . . . . . . . 433
7.3.8 Loading of cargo transport units on board ships . . . . . . . . . . . . . . . . . . . . . . 436

Chapter 7.4 Stowage and segregation on containerships

7.4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
7.4.2 Stowage requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
7.4.3 Segregation requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438

Chapter 7.5 Stowage and segregation on ro–ro ships

7.5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441
7.5.2 Stowage provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441
7.5.3 Segregation provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442

Chapter 7.6 Stowage and segregation on general cargo ships

7.6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443
7.6.2 Stowage and handling provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443
7.6.3 Segregation provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 447

Chapter 7.7 Shipborne barges on barge-carrying ships

7.7.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 451
7.7.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 451
7.7.3 Barge loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 451
7.7.4 Stowage of shipborne barges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452
7.7.5 Segregation between barges on board barge-carrying ships . . . . . . . . . . . . 452

contents

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Page

Chapter 7.8 Special requirements in the event of an incident and fire

precautions involving dangerous goods

7.8.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453
7.8.2 General provisions in the event of incidents . . . . . . . . . . . . . . . . . . . . . . . . . . 453
7.8.3 Special provisions for incidents involving infectious substances . . . . . . . . . . 453
7.8.4 Special provisions for incidents involving radioactive material . . . . . . . . . . . . 454
7.8.5 General fire precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454
7.8.6 Special fire precautions for class 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455
7.8.7 Special fire precautions for class 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455
7.8.8 Special fire precautions for class 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455
7.8.9 Special fire precautions and fire fighting for class 7 . . . . . . . . . . . . . . . . . . . . 455

Chapter 7.9 exemptions, approvals and certificates

7.9.1 Exemptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456
7.9.2 Approvals (including permits, authorizations or agreements) and certificates 456
7.9.3 Contact information for the main designated national competent authorities 456

APPeNDICeS

Appendix A list of generic and N.o.S. Proper Shipping Names

See volume 2

Appendix B Glossary of terms

See volume 2

INDeX

See volume 2

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ImDG Code (Amdt. 36-12)

Foreword

The International Convention for the Safety of Life at Sea, 1974 (SOLAS), as amended, deals with various
aspects of maritime safety and contains in chapter VII the mandatory provisions governing the carriage of
dangerous goods in packaged form or in solid form in bulk. The carriage of dangerous goods is prohibited
except in accordance with the relevant provisions of chapter VII, which are amplified by the International
Maritime Dangerous Goods (IMDG) Code.

Regulation II-2/19 of the SOLAS Convention, as amended, specifies the special requirements for a ship
intended to carry dangerous goods, the keel of which was laid or which was at a similar stage of construction
on or after 1 July 2002.

The International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of
1978 relating thereto (MARPOL), deals with various aspects of prevention of marine pollution, and contains in
its Annex III the mandatory provisions for the prevention of pollution by harmful substances carried by sea in
packaged form. Regulation 1(2) prohibits the carriage of harmful substances in ships except in accordance
with the provisions of Annex III, which are also amplified by the IMDG Code.

In accordance with the Provisions concerning Reports on Incidents Involving Harmful Substances (Protocol I
to MARPOL), incidents involving losses of such substances from ships must be reported by the master or
other person having charge of the ship concerned.

The IMDG Code that was adopted by resolution A.716(17) and amended by Amendments 27 to 30 was
recommended to Governments for adoption or for use as the basis for national regulations in pursuance of
their obligations under regulation VII/1.4 of the 1974 SOLAS Convention, as amended, and regulation 1(3) of
Annex III of MARPOL. The IMDG Code, as amended, attained mandatory status from 1 January 2004 under
the umbrella of SOLAS, 1974; however, some parts of the Code continue to be recommendatory. Observance
of the Code harmonizes the practices and procedures followed in the carriage of dangerous goods by sea and
ensures compliance with the mandatory provisions of the SOLAS Convention and of Annex III of MARPOL.

The Code, which sets out in detail the requirements applicable to each individual substance, material or
article, has undergone many changes, in both layout and content, in order to keep pace with the expan-
sion and progress of industry. IMO’s Maritime Safety Committee (MSC) is authorized by the Organization’s
Assembly to adopt amendments to the Code, thus enabling IMO to respond promptly to developments in
transport.

The MSC at its ninetieth session agreed that, in order to facilitate the multimodal transport of dangerous
goods, the provisions of the IMDG Code, 2012, may be applied from 1 January 2013 on a voluntary basis,
pending their official entry into force on 1 January 2014 without any transitional period. This is described in
resolution MSC.328(90) and the Preamble to this Code. It needs to be emphasized that, in the context of the
language of the Code, the words “shall”, “should” and “may”, when used in the Code, mean that the relevant
provisions are “mandatory”, “recommendatory” and “optional”, respectively.

Reference marks

The following symbols placed against an item indicate changes from the previous edition, in accordance with
Amendment 36-12 to the IMDG Code:

■ Insertion of an item
⊗ Deletion of an item
△ Change to an item

For detailed information on changes, please visit http://gisis.imo.org and navigate to the IMDG Code module
(free, instant registration required). Please inform IMO of any apparent discrepancies or errors in the texts
of the different versions of the IMDG Code (IMO documents, the printed publication and CD/download and
Internet versions of the Code) by means of the same link.

Foreword

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ImDG Code (Amdt. 36-12)

The IMDG Code is also available as a fully searchable database on CD or as a download (including the
items within its Supplement). Intranet and Internet (subscription) versions are also available. For more
information, please visit the IMO Publishing Service website at www.imo.org to see a live demonstration
of the CD/download versions and obtain details of how online subscription to the IMDG Code works. If and
when required, the IMO website will also include any files that show errata or corrigenda to this edition of the
IMDG Code.

These are anchored objects for cutting and pasting when using InCopy:

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ImDG Code (Amdt. 36-12)

Preamble

1

Carriage of dangerous goods by sea is regulated in order to reasonably prevent injury to persons or damage
to ships and their cargoes. Carriage of marine pollutants is primarily regulated to prevent harm to the marine
environment. The objective of the IMDG Code is to enhance the safe carriage of dangerous goods while
facilitating the free unrestricted movement of such goods and prevent pollution to the environment.

2

Over the years, many maritime countries have taken measures to regulate the transport of dangerous goods
by sea. The various regulations, codes and practices, however, differed in their framework and, in particular,
in the identification and labelling of such goods. Both the terminology used and the provisions for packaging
and stowage varied from country to country and created difficulties for all directly or indirectly concerned with
the transport of dangerous goods by sea.

3

The need for international regulation of the transport of dangerous goods by sea was recognized by the 1929
International Conference on Safety of Life at Sea (SOLAS), which recommended that rules on the subject
have international effect. The classification of dangerous goods and certain general provisions concerning
their transport in ships were adopted by the 1948 SOLAS Conference. This Conference also recommended
further study with the object of developing international regulations.

4

Meanwhile, the Economic and Social Council of the United Nations had appointed an ad hoc Committee of
Experts on the Transport of Dangerous Goods (UN Committee of Experts), which had been actively consider-
ing the international aspect of the transport of dangerous goods by all modes of transport. This committee
completed a report in 1956 dealing with classification, listing and labelling of dangerous goods and with the
transport documents required for such goods. This report, with subsequent modifications, offered a general
framework to which existing regulations could be harmonized and within which they could be further devel-
oped. The primary goal being world-wide uniformity for regulations concerning the transport of dangerous
goods by sea as well as other modes of transport.

5

As a further step towards meeting the need for international rules governing the transport of dangerous
goods in ships, the 1960 SOLAS Conference, in addition to laying down a general framework of provisions
in chapter VII of the SOLAS Convention, invited IMO (Recommendation 56) to undertake a study with a view
to establishing a unified international code for the transport of dangerous goods by sea. This study would
be pursued in co-operation with the UN Committee of Experts and should take account of existing maritime
practices and procedures. The Conference further recommended that the unified code be prepared by IMO
and that it be adopted by the Governments that were Parties to the 1960 Convention.

6

To implement Recommendation 56, IMO’s Maritime Safety Committee (MSC) appointed a working group
drawn from those countries having considerable experience in the transport of dangerous goods by sea.
Preliminary drafts for each class of substances, materials and articles were subsequently brought under
close scrutiny by the working group to take into account throughout the practices and procedures of a number
of maritime countries in order to make the Code as widely acceptable as possible. This new International
Maritime Dangerous Goods (IMDG) Code was approved by the MSC and recommended to Governments by
the Assembly of IMO in 1965.

7

During another SOLAS Conference held in 1974, chapter VII of the Convention remained essentially unchanged.
Since that date, several amendments to chapter VII adopted by the MSC have entered into force. Although
invoked by a footnote reference in regulation 1 of chapter VII, the IMDG Code itself had only recommendatory
status until 31 December 2003.

8

At the International Conference on Marine Pollution, 1973, the need was recognized to preserve the marine
environment. It was further recognized that negligent or accidental release of marine pollutants transported
by sea in packaged form should be minimized. Consequently, provisions were established and adopted by
the Conference, and are contained in Annex III of the International Convention for the Prevention of Pollution
from Ships, 1973, as modified by the Protocol of 1978 relating thereto (MARPOL 73/78). The Marine Environ-
ment Protection Committee (MEPC) decided in 1985 that Annex III should be implemented through the IMDG
Code. This decision was also endorsed by the MSC in 1985. Since that date, several amendments to Annex
III to MARPOL 73/78 have entered into force.

9

The UN Committee of Experts has continued to meet until the present day and its published “Recommen-
dations on the Transport of Dangerous Goods” are updated biennially. In 1996, the MSC agreed that the
IMDG Code should be reformatted consistent with the format of the UN Recommendations on the Transport

preamble

xiv

ImDG Code (Amdt. 36-12)

of Dangerous Goods. The consistency in format of the UN Recommendations, the IMDG Code and other
dangerous goods transport regulations is intended to enhance user-friendliness, compliance with the regula-
tions, and the safe transport of dangerous goods.

10

In 2002, the MSC adopted amendments to SOLAS chapter VII to make the IMDG Code mandatory, which
came into force on 1 January 2004. Since then, further amendments were adopted to facilitate user friendli-
ness and promote uniform implementation of the Code. In addition, at its 90th session in May 2012, the MSC
adopted amendment 36-12 to the mandatory IMDG Code, which is a complete consolidated and updated
version of its text and which will enter into force on 1 January 2014 without any transitional period. However, in
accordance with resolution MSC.328(90), Governments were encouraged to apply this Amendment in whole
or on part on a voluntary basis from 1 January 2013.

11

In order to keep the Code up to date from the maritime transport operational aspect, the MSC will continue
to take into account technological developments, as well as changes to chemical classifications and the
related consignment provisions that primarily concern the shipper/consignor. The two-year periodicity of
amendments to the UN Recommendations on Transport of Dangerous Goods will also provide the source of
most future updating of the IMDG Code.

12

The MSC will also have regard to future implications for the carriage of dangerous goods by sea, in particular,
arising from any acceptance by the UN Conference on Environmental Development (UNCED) of common
criteria for the classification of chemicals on the basis of a Global Harmonization System (GHS).

13

Attention is drawn to IMO document FAL.6/Circ.14, a list of existing publications relevant to areas and topics
relating to ship/port interface matters.

14

Advice on emergency procedures and for initial management of chemical poisoning and diagnosis that may
be used in conjunction with the IMDG Code is published separately in “The EmS Guide: Emergency Response
Procedures for Ships Carrying Dangerous Goods” (MSC.1/Circ.1025 as amended by MSC.1/Circ.1025/Add.1,
MSC.1/Circ.1262, MSC.1/Circ.1360 and MSC.1/Circ.1438) and in the “Medical First Aid Guide for Use in
Accidents Involving Dangerous Goods” (see MSC/Circ.857 and DSC 3/15/Add.2), respectively.

15

In addition, referring to Part D of chapter VII of the SOLAS Convention, a ship transporting INF cargo, as
defined in regulation VII/14.2, shall comply with the requirements of the International Code for the Safe
Carriage of Packaged Irradiated Nuclear Fuel, Plutonium and High-Level Radioactive Wastes on board Ships
(INF Code).