With effect from 1st January 2020, amendment 05-19 may be applied by Governments on a voluntary basis but with effect from 1st January 2021 it will enter into mandatory force. It is important to recognise that in the period 1st January 2020 – 31st December 2020 the 2018 edition of the IMSBC (including amendment 04-17) is the mandatory instrument in jurisdictions where the 2020 edition has not been voluntarily adopted. Members should also note the contents of circular CCC.1/Circ.2/Rev.1 dated 20 September 2017 in respect of the carriage of bauxite under the provisions of the 2018 edition of the IMSBC code.