A refined Materials Hazardous only in Bulk (MHB) corrosivity (CR) test has been developed which prescribes testing of representative samples of the cargo at conditions representing their as-shipped properties. The International Maritime Organization (IMO) formally published this interim guidance in January 2019 MSC.1/Circ.1600 Interim Guidance for Conducting the Refined MHB (CR) Corrosivity Test. AMSA have recently issued exemption EX5739 which allows shippers to use this guidance in the circular until 31 December 2022 when it is agreed and finalised in the 06-21 amendments to the IMSBC Code, considering the mandatory entry into force would be 1 January 2023.
AMSA have previously issued two exemptions also relating to corrosivity:
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The Australian Maritime Safety Authority (AMSA) have been working with industry on issues identified with the repeatability and reliability of the modified C.1 test prescribed by section 126.96.36.199.3 of the International Maritime Solid Bulk Cargoes Code (IMSBC Code).
AMSA have previously issued two exemptions, namely EX5450 (issued 19 December 2016) and EX5451 (issued 21 December 2016) in respect of assessing the corrosive properties of solid bulk cargoes. Both of these exemptions were valid until the 04-17 amendment to the IMSBC Code came into mandatory effect from 1 January 2019.
Issues relating to use of the C.1 test for assessing the corrosive properties of Solid Bulk Cargoes have been progressed at meetings of the sub-committee for the Carriage of Cargoes and Containers (CCC) at the International Maritime Organization (IMO). A refined Materials Hazardous only in Bulk (MHB) corrosivity (CR) test has been developed which prescribes testing of representative samples of the cargo at conditions representing their as-shipped properties. Amendments to be included in the 06-21 amendments to the IMSBC Code were finalised and agreed during CCC 5 in September 2018. These were sent to the Maritime Safety Committee (MSC) in December 2018 for that committee to issue an MSC circular. Until that circular can be formally published, allowing AMSA to permit use of it, and to allow shippers a period to transition to the contents of the circular once it is formally published, AMSA has issued two exemptions valid until the end of June 2019, to replace those previously issued as detailed below:
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For further information on these exemptions, or conducting the refined MHB (CR) corrosivity test, or for any other maritime transport compliance query please contact Davoren Environmental
 International Maritime Solid Bulk Cargoes Code. Incorporating Amendment 04-17 and Supplement, 2018 Edition.
New MARPOL Amendments entered into force on March 1 2018.
Specific amendments relating to MARPOL Annex V Prevention of pollution by garbage from ships include the following:
Management of Solid Bulk Cargo Residues
With regard to HME classification, 2017 Guidelines to assist in the implementation of MARPOL Annex V have been published. Cargo residues are considered as HME and subject to regulations 4.1.3 and 188.8.131.52 of MARPOL Annex V if they are residues of solid bulk cargoes (other than grain) which are classified according to the criteria of the United Nations Globally Harmonized System of Classification and Labelling of Chemicals (GHS).
Other notable changes to the IMSBC Code include:
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Many materials produced or used in the mining and minerals processing industry are classified as hazardous according to the Globally Harmonized Classification System (GHS). The correct classification of these materials is therefore imperative to properly manage any potential health and environmental risks and ensure compliance with relevant legislative requirements, .
Davoren Environmental have significant experience working with the mining industry to conduct hazard assessments on a wide range of materials for classification against relevant transport codes. Some of the materials assessed include:
Our aim is to make the hazard assessment and classification process as simple and tailored as possible by:
1. Consulting with the client to:
a. Fully understand the material’s physical/chemical characteristics to identify the relevant hazards that apply, and consequently the applicable tests that need to be conducted; and
b. Confirming how this material will be transported to identify relevant legislation to be addressed.
2. Coordinate and manage this testing directly with laboratory;
3. Compile a comprehensive classification report based on results of 1 and 2 above which will clearly detail the hazard assessment and classification of the material against applicable transport regulations.
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 ICMM, 2014. Hazard Assessment of Ores and Concentrates for Marine Transport.
 Australian Government, 2016. Hazardous Material Management: Leading Practice Sustainable Development Program for the Mining Industry.
 Australian Code for the Transport of Dangerous Goods by Road and Rail (ADG) in Australia; International Maritime Dangerous Goods (IMDG) Code for maritime transport of packaged dangerous goods, including substances, mixtures and articles; and the International Maritime Solid Bulk Cargoes (IMSBC) Code and International Convention for the Prevention of Pollution from Ships (MARPOL Annex V) for shipment of solid bulk cargoes.