The IMDG Code has undergone many changes over the years, in both format and content, in order to keep up with the rapid expansion of the shipping industry. Amendment 36-12 includes revisions to various sections of the Code and to transport requirements for specific substances. It was adopted by IMO"s Maritime Safety Committee (MSC) at its ninetieth session in May 2012.The Code, as amended by Amendment 36-12, is mandatory as from 1 January 2014 but may be applied by Administrations in whole or in part on a voluntary basis from 1 January 2013.