The International Maritime Dangerous Goods Code (IMDG Code) lays out the regulatory framework for all aspects of handling dangerous goods and marine pollutants in sea transport.
Amendment 41-22 includes revisions to various sections of the Code and to transport requirements for specific substances. It was adopted by the International Maritime Organization’s Maritime Safety Committee at its one hundred and fifth session in April 2022 and is mandatory from 1 January 2024 but may be applied on a voluntary basis from 1 January 2023. There is a general 12-month transitional period from 1st January 2023 to 31st December 2023 during which the previous amendment can continue to be used.
IMDG Code Free Summary of Changes 41-22 – Brief summary
As usual harmonized with the UN regulation, 22nd edition
Two existing numbers, UN 1169 EXTRACTS, AROMATIC, LIQUID and UN 1197 EXTRACTS, FLAVOURING, LIQUID are merged, becoming UN 1197 EXTRACTS, LIQUID, for flavour or aroma.
UN 1891 ETHYL BROMIDE changes class from class 6.1 to class 3, sub-hazard 6.1. The LQ, EQ and EmS values change as a result.
UN 3527 (PGII and PGIII), POLYESTER RESIN KIT, solid base material, changes ‘E0’ to now read ‘See SP340’
The distinction between strong and weak acids is deleted. All entries with SGG1a strong acid now have SGG1 acid. UN 1439 AMMONIUM DICHROMATE, the only entry with SG75 Stow “separated from” SGG1a – strong acids, now has SG35 and needs to be separated from all acids.
P200 has new provisions for mixtures of fluorine and inert gases. The LC50 values are updated in table 2 for UN 1008, 2196 and 2198, and for the latter two this increases the types of pressure receptacle that may be used.
P621 part (1) now allows non-removable head drums and boxes.
IBC07 has a new special packing ‘B40’ added providing use of flexible IBCs (13H3 and 13H4) for the new UN 3550
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