A summary of the key changes is as follows:
There is a new section setting out conditions when specified types of lamp are exempt from the IMDG Code provisions.
There is a new paragraph 18.104.22.168 referencing the International Convention for Safe Containers, 1972, as amended.
Throughout the new Amendment there are updates to provisions concerning class 7 primarily to reflect the changes to the IAEA "Regulations for the Safe Transport of Radioactive Material, 2012 Edition, IAEA Safety Standards Series No. SSR6, IAEA, Vienna (2012).
There are several changes to the classification provisions in Part 2, including changes to PSNs for several class entries.
For marine pollutants there is a new 22.214.171.124 which provides conditional exemptions from the majority of the IMDG Code provisions.
There are numerous updates to the Dangerous Goods List (DGL) in 3.2 including the addition of 20 new UN Numbers from UN 3507 to UN 3526.
Column 16 of the DGL is now split into columns 16a and 16b and stowage and segregation requirements are now coded, stowage and handling codes in 16a; segregation codes in 16b.
There are many revisions to the packing instructions, including those for IBCs and large packagings and a number of new packing instructions: P208, P505, P805, P908, P909, LP903, LP904.
Clarifications on the design and dimensions of various package marks, labels and placards have been provided including the marine pollutant and limited quantity markings.
There are a few changes to documentation requirements in Chapter 5.4 e.g. clarification of the requirements for marine pollutant endorsements.
There are several changes to Part 6 of the Code, particularly to the provisions for packagings for class 7 (chapter 6.4) and pressure receptacles, aerosol dispensers and gas cartridges (chapter 6.2).
In chapter 6.6, large salvage packagings are added.
There are numerous changes to Part 7 to reflect the new columns 16a and 16b in the DGL.
There are new explanatory notes in 7.1.5, 7.1.6 and 7.2.8 respectively for the stowage (SW), handling (H) and segregation codes (SG) now appearing in columns 16a and 16b.
There is a new segregation requirement in 7.2.4. Flammable gases (class 2.1) and flammable liquids (class 3) must now be separated from substances which, in contact with water, emit flammable gases (class 4.3). This reflects the changes adopted for these classes in the DGL.
There is also a new segregation requirement provided by SG26 which states in addition: from goods of classes 2.1 and 3 when stowed on deck of a containership a minimum distance of two container spaces athwartship shall be maintained, when stowed on ro-ro ships a distance of 6 m athwartship shall be maintained.'. This applies to almost all class 4.3s (including sub-risks) and also covers metal powders and peroxides etc. in other classes.