If fumigated containers are to be loaded on vessel without ventilating to bring the concentration of gas below TLV same must accompany a document with below information
- UN 3359, fumigated cargo transport unit, 9, or UN 3359, fumigated cargo transport unit, class 9;
- date and time of fumigation
- type and amount of the fumigant used
- Instructions for disposal of any residual fumigant including fumigation devices (if used)
Additionally, if, due to stowage constraints these units are planned for under deck stowage vessel operator may ask for equipment to detect the fumigant gas.