9.4.1       The packers should ensure that:

• Tightly arranged cargoes are so stowed in CTUs that boundaries of the CTU are not overstressed;
• In the case of CTUs with weak or without boundaries sufficient securing forces are produced by the cargo securing arrangement;
• Packages of greater size, mass or shape are individually secured to prevent sliding and, when necessary, tilting;
• The efficiency of the cargo securing arrangement is properly evaluated.

9.4.2       In order to comply with the obligations in 9.4.1 the packer should follow the provisions of annex 7, section 4 and the appendices to annex 7.

9.4.3       Additional advice for the evaluation for certain cargo securing arrangements may be found in annex 7, appendix 4.