For the international transport of goods it is necessary to follow the recommendations given by the International Maritime Organization (IMO) of the United Nations.
Loads can be loose and individual, which are separated into bales, packages, sacks, boxes or tied pieces. And unitized loads placed in units by categories.
Perishable loads should always have special conditions for their preservation such as refrigeration, preservatives or vacuum bags. The products included in this group are fruits and vegetables, meats and derivatives, fish and seafood, ornamental fish, dairy products, fresh products and foliage.