6.3.1 Ships' personnel should not handle fumigants
and such operations should be carried out only by qualified operators.
Personnel allowed to remain in the vicinity of a fumigation operation
for a particular purpose should follow the instructions of the fumigator-in-charge
implicitly.
6.3.2 Aeration of treated spaces on board a ship
should be completed and a gas-free certificate should be issued as
described in 3.1.4 before personnel are permitted to enter.