MSC.501(105) Amendments to the International Maritime Dangerous Goods (IMDG) Code

RESOLUTION MSC.501(105)

(adopted on 28 April 2022)

AMENDMENTS TO THE INTERNATIONAL MARITIME DANGEROUS GOODS (IMDG) CODE

THE MARITIME SAFETY COMMITTEE,

RECALLING Article 28(b) of the Convention on the International Maritime Organization concerning the functions of the Committee,

NOTING resolution MSC.122(75) by which it adopted the International Maritime Dangerous Goods Code (hereinafter referred to as "the IMDG Code"), which has become mandatory under chapter VII of the International Convention for the Safety of Life at Sea (SOLAS), 1974, as amended (hereinafter referred to as "the Convention"),

NOTING ALSO article VIII(b) and regulation VII/1.1 of the Convention concerning the procedure for amending the IMDG Code,

HAVING CONSIDERED, at its 105th session, amendments to the IMDG Code, proposed and circulated in accordance with article VIII(b)(i) of the Convention,

1 ADOPTS, in accordance with article VIII(b)(iv) of the Convention, amendments to the IMDG Code, the text of which is set out in the annex to the present resolution;

2 DETERMINES, in accordance with article VIII(b)(vi)(2)(bb) of the Convention, that the said amendments shall be deemed to have been accepted on 1 July 2023 unless, prior to that date, more than one third of the Contracting Governments to the Convention or Contracting Governments the combined merchant fleets of which constitute not less than 50% of the gross tonnage of the world's merchant fleet have notified their objections to the amendments;

3 INVITES Contracting Governments to the Convention to note that, in accordance with article VIII(b)(vii)(2) of the Convention, the amendments shall enter into force on 1 January 2024 upon their acceptance in accordance with paragraph 2 above;

4 AGREES that Contracting Governments to the Convention may apply the aforementioned amendments in whole or in part on a voluntary basis from 1 January 2023;

5 REQUESTS the Secretary-General, for the purposes of article VIII(b)(v) of the Convention, to transmit certified copies of the present resolution and the text of the amendments contained in the annex to all Contracting Governments to the Convention;

6 ALSO REQUESTS the Secretary-General to transmit copies of this resolution and its annex to Members of the Organization which are not Contracting Governments to the Convention.

ANNEX

AMENDMENTS TO THE INTERNATIONAL MARITIME DANGEROUS GOODS (IMDG) CODE

Contents

Insert a new chapter 6.10 as follows:

"Chapter 6.10

Provisions for the design, construction, inspection and testing of portable tanks with shells made of fibre-reinforced plastics (FRP) materials

6.10.1 Application and general requirements

6.10.2 Provisions for the design, construction, inspection and testing of FRP portable tanks".

PART 1

GENERAL PROVISIONS, DEFINITIONS AND TRAINING

Chapter 1.2

Definitions, units of measurement and abbreviations

1.2.1 Definitions

In the definition for "Bundles of cylinders", replace the words "assemblies of cylinders" with the words "pressure receptacles comprising an assembly of cylinders or cylinder shells".

Add the following new note under the definition for "Closure":

"Note: For pressure receptacles, closures are, for example, valves, pressure relief devices, pressure gauges or level indicators."

Replace the definition for "Cryogenic receptacles" to read as follows:

"Closed cryogenic receptacles are thermally insulated pressure receptacles for refrigerated liquefied gases of a water capacity of not more than 1,000 L."

In the definition for "Cylinders", delete the word "transportable".

In the definition for "GHS", replace the word "eighth" by the word "ninth" and replace "ST/SG/AC.10/30/Rev.8" with "ST/SG/AC.10/30/Rev.9".

In the definition for "Liquids", in the footnote, replace "ECE/TRANS/275 (Sales No. E.18.VIII.1)" with "ECE/TRANS/300 (Sales No. E.21.VIII.1)".

In the definition for "Manual of Tests and Criteria", after "ST/SG/AC.10/11/Rev.7", insert the words "and Amend.1".

In the definition for "Metal hydride storage system", replace the word "receptacle" with the words "pressure receptacle shell".

In the definition for "Pressure drums", delete the word "transportable".

In the definition for "Pressure receptacles", after the words "Pressure receptacles", add the words "are transportable receptacles intended for holding substances under pressure including its closure(s) and other service equipment and it".

In the definition for "Recycled plastics material", at the end of the note, add the following new sentence:

"These guidelines have been developed based on the experience of the manufacturing of drums and jerricans from recycled plastics material and as such may need to be adapted for other types of packagings, IBCs and large packagings made of recycled plastics material."

In the definition for "Tube", delete the word "transportable".

Replace the definition for "Working pressure" to read as follows:

"Working pressure:

.1 for a compressed gas, means the settled pressure at a reference temperature of 15°C in a full pressure receptacle;

.2 for UN 1001 acetylene, dissolved, means the calculated settled pressure at a uniform reference temperature of 15°C in an acetylene cylinder containing the specified solvent content and the maximum acetylene content; and

.3 for UN 3374 acetylene, solvent free, means the working pressure which was calculated for the equivalent cylinder for UN 1001 acetylene, dissolved."

Insert the following new definitions, in alphabetical order:

"IAEA Regulations for the Safe Transport of Radioactive Material means one of the editions of those Regulations, as follows:

.1 for the 1985, 1985 (as amended 1990) editions: IAEA Safety Series No. 6;

.2 for the 1996 edition: IAEA Safety Series No. ST-1;

.3 for the 1996 (revised) edition: IAEA Safety Series No. TS-R-1 (ST-1, Revised);

.4 for the 1996 (as amended 2003), 2005, 2009 editions: IAEA Safety Standards Series No. TS-R-1;

.5 for the 2012 edition: IAEA Safety Standards Series No. SSR-6; and

.6 for the 2018 edition: IAEA Safety Standards Series No. SSR-6 (Rev.1)."

"Inner vessel, for a closed cryogenic receptacle, means the pressure vessel intended to contain the refrigerated liquefied gas."

"Pressure receptacle shell means a cylinder, a tube, a pressure drum or a salvage pressure receptacle without its closures or other service equipment, but including any permanently attached device(s) (e.g. neck ring, foot ring, etc.).

Note: The terms "cylinder shell", "pressure drum shell" and "tube shell" are also used."

"Service equipment of a pressure receptacle means closure(s), manifold(s), piping, porous, absorbent or adsorbent material and any structural devices, e.g. for handling."

1.2.2 Units of measurement

1.2.2.1 In the table, after the entry for "Power", add the following new entry:

Electrical resistance

Ω (ohm)

1 Ω = 1 kg · m² · s⁻³ · A⁻²

Chapter 1.4

Security provisions

1.4.3 Provisions for high consequence dangerous goods

1.4.3.2 Specific security provisions for high consequence dangerous goods

1.4.3.2.3 Delete both footnotes "*" and "^†". After "Convention on Physical Protection of Nuclear Material", add "(INFCIRC/274/Rev.1, IAEA, Vienna (1980))". After "Nuclear Security Recommendations on Physical Protection of Nuclear Material and Nuclear Facilities", add "(INFCIRC/225/Rev.5, IAEA, Vienna (2011))".

Chapter 1.5

General provisions concerning radioactive material

1.5.1 Scope and application

1.5.1.1 Replace the second sentence to read "These provisions are based on the 2018 edition of the IAEA Regulations for the Safe Transport of Radioactive Material".

PART 2

CLASSIFICATION

Chapter 2.4

Class 4 - Flammable solids; substances liable to spontaneous combustion; substances which, in contact with water, emit flammable gases

2.4.2 Class 4.1 - Flammable solids, self-reactive substances, solid desensitized explosives and polymerizing substances

2.4.2.3 Class 4.1 Self-reactive substances

2.4.2.3.2 Classification of self-reactive substances

2.4.2.3.2.3 In the last sentence, after the words "The formulations" add the words "not listed in this provision but".

In the table, add the following new entry in proper order:

3230

(7-METHOXY-5-METHYL-BENZOTHIOPHEN-2-YL) BORONIC ACID

88-100

OP7

(11)

Under the table, add the following new table note:

"(11) The technical compound with the specified concentration limits may contain up to 12% water and up to 1% organic impurities."

Chapter 2.5

Class 5 - Oxidizing substances and organic peroxides

2.5.3 Class 5.2 - Organic peroxides

2.5.3.2 Classification of organic peroxides

2.5.3.2.4 List of currently assigned organic peroxides in packagings

In the last sentence, after the words "The formulations" add the words "not listed in this provision but".

In the table, add the following new entries in proper order:

3105

tert-BUTYLPEROXY

ISOPROPYLCARBONATE

≤ 62

≥ 38

OP7

3107

ACETYL ACETONE

PEROXIDE

≤ 35

≥ 57

≥ 8

OP8

(32)

3117

tert-HEXYL

PEROXYPIVALATE

≤ 52 as a stable dispersion in water

OP8

+15

+20

In the list of "Remarks" add the following entry:

"(32) Active oxygen ≤ 4.15%"

Chapter 2.6

Class 6 - Toxic and infectious substances

2.6.0 Introductory notes

In note 3, at the end, add the words "or UN 3462".

Chapter 2.7

Class 7 - Radioactive material

2.7.2 Classification

2.7.2.3 Determination of other material characteristics

2.7.2.3.1 Low specific activity (LSA)

2.7.2.3.1.4 Delete the paragraph and add the words "2.7.2.3.1.4 Deleted."

2.7.2.3.1.5 Delete the paragraph and add the words "2.7.2.3.1.5 Deleted."

2.7.2.3.4 Low dispersible material

Replace the heading to read "Low dispersible radioactive material".

2.7.2.3.4.1.3 In the first sentence, replace "2.7.2.3.1.4" with "2.7.2.3.4.3".

2.7.2.3.4.3 Insert a new paragraph 2.7.2.3.4.3 to read as follows:

"2.7.2.3.4.3 A solid material sample representing the entire contents of the package shall be immersed for seven days in water at ambient temperature. The volume of water to be used in the test shall be sufficient to ensure that at the end of the seven-day test period the free volume of the unabsorbed and unreacted water remaining shall be at least 10% of the volume of the solid test sample itself. The water shall have an initial pH of 6-8 and a maximum conductivity of 1 mS/m at 20°C. The total activity of the free volume of water shall be measured following the seven-day immersion of the test sample."

and renumber the existing paragraph 2.7.2.3.4.3 to 2.7.2.3.4.4 and replace "2.7.2.3.4.1 and 2.7.2.3.4.2" with "2.7.2.3.4.1, 2.7.2.3.4.2 and 2.7.2.3.4.3".

Chapter 2.8

Class 8 - Corrosive substances

2.8.3 Packing group assignment for substances and mixtures

2.8.3.2 In the second sentence, replace the words "OECD Test Guidelines^*†‡§" with the words "OECD Test Guidelines Nos. 404,* 435,^† 431^‡ or 430^§". In the third sentence, replace the words "OECD Test Guidelines^*†‡§" with the words "one of these or non-classified in accordance with OECD Test Guideline No. 439,¹¹". In the fourth sentence, delete the words "in vitro". At the end, add the following new sentence: "If the test results indicate that the substance or mixture is corrosive, but the test method does not allow discrimination between packing groups, it shall be assigned to packing group I if no other test results indicate a different packing group."

Add a footnote ¹¹ to read "¹¹ OECD Guideline for the testing of chemicals No. 439 In Vitro Skin Irritation: Reconstructed Human Epidermis Test Method 2015."

2.8.3.3.3.2 Replace the words "ISO 3574 or Unified Numbering System (UNS) G10200 or a similar type" with the words "ISO 3574, Unified Numbering System (UNS) G10200".

Chapter 2.9

Miscellaneous dangerous substances and articles (class 9) and environmentally hazardous substances

2.9.3 Environmentally hazardous substances (aquatic environment)

2.9.3.4 Mixtures classification categories and criteria

2.9.3.4.3 Classification of mixtures when toxicity data are available for the complete mixture

2.9.3.4.3.4 (a) Classification for categories Chronic 1 and 2

After (i), add a new note to read as follows:

"Note: In this situation, when ECx or NOEC of the tested mixture > 0.1 mg/L, there is no need to classify for long-term hazard under these provisions."

2.9.4 Lithium batteries

2.9.4.7 Amend the beginning of the sentence to read "Except for button cells installed in equipment (including circuit boards), manufacturers...".

PART 3

DANGEROUS GOODS LIST, SPECIAL PROVISIONS AND EXCEPTIONS

Chapter 3.1

General

3.1.4 Segregation groups

3.1.4.4 In the entry "1 Acids (SGG1 or SGG1a)", replace the heading to read "1 Acids (SGG1)", and delete all asterisks and the corresponding footnote "* identifies strong acids".

Chapter 3.2

Dangerous Goods List

UN No.	Amendment
1002	In column 6, add "397"
1012	In column 6, add "398"
1052	In column 16b, replace "SGG1a" with "SGG1"
1169 PG II	Delete the entry
1169 PG III	Delete the entry
1197 PG II	Replace column 2 to read "EXTRACTS, LIQUID, for flavour or aroma"
1197 PG III	Replace column 2 to read "EXTRACTS, LIQUID, for flavour or aroma"
1439	In column 16b, replace "SG75" with "SG35". In column 17, delete the word "strong".
1756	In column 17, delete the word "strong"
1757	In column 17, delete the word "strong"
1777	In column 16b, replace "SGG1a" with "SGG1"
1786	In column 16b, replace "SGG1a" with "SGG1"
1787 PG II	In column 16b, replace "SGG1a" with "SGG1"
1787 PG III	In column 16b, replace "SGG1a" with "SGG1"
1788 PG II	In column 16b, replace "SGG1a" with "SGG1"
1788 PG III	In column 16b, replace "SGG1a" with "SGG1"
1789 PG II	In column 16b, replace "SGG1a" with "SGG1"
1789 PG III	In column 16b, replace "SGG1a" with "SGG1"
1790 PG I	In column 16b, replace "SGG1a" with "SGG1"
1790 PG II	In column 16b, replace "SGG1a" with "SGG1"
1796 PG I	In column 16b, replace "SGG1a" with "SGG1"
1796 PG II	In column 16b, replace "SGG1a" with "SGG1"
1798	In column 16b, replace "SGG1a" with "SGG1"
1802	In column 16b, replace "SGG1a" with "SGG1"
1826 PG I	In column 16b, replace "SGG1a" with "SGG1"
1826 PG II	In column 16b, replace "SGG1a" with "SGG1"
1830	In column 16b, replace "SGG1a" with "SGG1"
1831	In column 16b, replace "SGG1a" with "SGG1"
1832	In column 16b, replace "SGG1a" with "SGG1"
1873	In column 16b, replace "SGG1a" with "SGG1"
1891	In column 3, replace "6.1" with "3". In column 4, add "6.1". In column 7a, replace "100 mL" with "1 L". In column 7b, replace "E4" with "E2". In column 15, replace "F-A" with "F-E" and replace "S-A" with "S-D". In column 17, before the words "Boiling point: 38°C.", add the words "Flashpoint -20°C c.c."
1906	In column 16b, replace "SGG1a" with "SGG1"
2031 PG I	In column 16b, replace "SGG1a" with "SGG1"
2031 PG II (twice)	In column 16b, replace "SGG1a" with "SGG1"
2032	In column 16b, replace "SGG1a" with "SGG1"
2240	In column 16b, replace "SGG1a" with "SGG1"
2308	In column 16b, replace "SGG1a" with "SGG1"
2426	In column 17, delete the word "strong"
2716	In column 17, delete the word "strong"
2796	In column 16b, replace "SGG1a" with "SGG1"
3208 PG II	In column 7b, replace "E0" with "E2"
3209 PG II	In column 7b, replace "E2" with "E0"
3527 PG II	In column 7b, replace "E0" with "See SP340"
3527 PG III	In column 7b, replace "E0" with "See SP340"
3538	In column 6, add "396"

(1)

(2)

(3)

(4)

(5)

(6)

(7a)

(7b)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

(15)

(16a)

(16b)

(17)

3550

COBALT DIHYDROXIDE POWDER, containing not less than 10% respirable particles

6.1

P002

IBC07

B40

TP33

F-A,

S-A

Category D

SW2

Pink odourless powder. Toxic by dust inhalation.

Chapter 3.3

Special provisions applicable to certain substances, materials or articles

SP188 In .6, delete note 1 and renumber "Note 2" to "Note".

SP225 After .1, insert the following new note:

"Note: This entry applies to portable fire extinguishers, even if some components that are necessary for their proper functioning (e.g. hoses and nozzles) are temporarily detached, as long as the safety of the pressurized extinguishing agent containers is not compromised and the fire extinguishers continue to be identified as a portable fire extinguisher."

Add the following new special provisions:

"396 Large and robust articles may be transported with connected gas cylinders with the valves open regardless of 4.1.6.1.5 provided:

.1 the gas cylinders contain nitrogen of UN 1066 or compressed gas of UN 1956 or compressed air of UN 1002;

.2 the gas cylinders are connected with the article through pressure regulators and fixed piping in such a way that the pressure of the gas (gauge pressure) in the article does not exceed 35 kPa (0.35 bar);

.3 the gas cylinders are properly secured so that they cannot move in relation to the article and are fitted with strong and pressure resistant hoses and pipes;

.4 the gas cylinders, pressure regulators, piping and other components are protected from damage and impacts during transport by wooden crates or other suitable means;

.5 the transport document includes the following statement: "Transport in accordance with special provision 396."; and

.6 cargo transport units containing articles transported with cylinders with open valves containing a gas presenting a risk of asphyxiation are well ventilated and are marked in accordance with 5.5.3.6."

"397 Mixtures of nitrogen and oxygen containing not less than 19.5% and not more than 23.5% oxygen by volume may be transported under this entry when no other oxidizing gases are present. A division 5.1 subsidiary hazard label is not required for any concentrations within this limit."

"398 This entry applies to mixtures of butylenes, 1-butylene, cis-2-butylene and trans-2butylene. For isobutylene, see UN 1055."

PART 4

PACKING AND TANK PROVISIONS

Chapter 4.1

Use of packagings, including intermediate bulk containers (IBCs) and large packagings

4.1.1 General provisions for the packing of dangerous goods in packagings, including IBCs and large packagings

4.1.1.15 Add a note at the end to read as follows:

"Note: For composite IBCs the period of use refers to the date of manufacture of the inner receptacle."

4.1.1.19 Use of salvage pressure receptacles

4.1.1.19.2 Delete the second sentence. In the fourth sentence, replace "1,000" with "3,000".

4.1.3 General provisions concerning packing instructions

4.1.3.3 Add a new last sentence to read as follows:

"Where packagings which need not meet the requirements of 4.1.1.3 (e.g. crates, pallets, etc.) are authorized in a packing instruction or the special provisions named in the Dangerous Goods List, these packages are not subject to the mass or volume limits generally applicable to packagings conforming to the requirements of chapter 6.1, unless otherwise indicated in the relevant packing instruction or special provision."

4.1.4 List of packing instructions

4.1.4.1 Packing instructions concerning the use of packagings (except IBCs and large packagings)

P003 Under special packing provision PP32, add a new note to read as follows:

"Note: The packagings authorized may exceed a net mass of 400 kg (see 4.1.3.3)."

P004 At the end, after (3), add a new note to read as follows:

"Note: The packagings authorized in (2) and (3) may exceed a net mass of 400 kg (see 4.1.3.3)."

P005 In the second row after the heading row, under the second paragraph, add a new note to read as follows:

"Note: The packagings authorized may exceed a net mass of 400 kg (see 4.1.3.3)."

P006 In paragraph (2), at the end, add a new note to read as follows:

"Note: The packagings authorized may exceed a net mass of 400 kg (see 4.1.3.3)."

P130 In special packing provision PP67, add a new note to read as follows:

"Note: The packagings authorized may exceed a net mass of 400 kg (see 4.1.3.3)."

P137 In special packing provision PP70, first sentence, replace "in accordance with 5.2.1.7.1"