If a rate of custom duty is based in whole or in part on the weight of goods, the customs duties imposed on the goods are, unless otherwise provided, to be calculated on the basis of the net weight of the goods. Please be advised: The weight of the packages must be included in the weight of the goods for the purpose of calculating the customs duties on the goods classified under heading 07.02, 07.03, 07.04, 07.05, 07.06, 07.07, 07.08 or 07.09. The weight of the packages must be included in the weight of the goods for the purpose of calculating the customs duties on the goods classified under heading 08.06, 08.08, 08.09 or 08.10.