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(1). Conference tariffs shall not unfairly differentiate between shippers similarly situated. Shipping lines members of a conference shall adhere strictly to the rates, rules and terms shown in the tariffs and other currently valid published documents of the conference and to any special arrangements permitted under this Code.
(2). Conference tariffs should be drawn up simply and clearly, containing as few classes/categories as possible, depending on the particular requirements of a trade, specifying a freight rate for each commodity and, where appropriate, for each class/category; they should also indicate, wherever practicable, in order to facilitate statistical compilation and analysis, the corresponding appropriate code number of the item in accordance with the Standard International Trade Classification, the Brussels Tariff Nomenclature or any other nomenclature that may be internationally adopted; the classification of commodities in the tariffs should, as far as practicable, be prepared in co-operation with shippers' organizations and other national and international organizations concerned.