The Group of Experts, at its fourth session (Geneva, 4 to 6 November 2013) at the
UNECE, finalized the IMO/ILO/UNECE Code of Practice for Packing of Cargo Transport
Units (CTU Code) consisting of 13 chapters and supplemented by 10 annexes. The Group
of Experts agreed not to include in the CTU Code material which was of an
informative nature. This material was identified as Informative Material (IM), which
would be useful to some parties in the transport chain, such as trainers and
managers. The informative material does not constitute part of the CTU Code, but
provides further practical guidance and technical background information. In this
context, the CTU Code references it as IM1 to IM10.