1. Foodstuffs and provisions not exceeding what is necessary on board ships bound for foreign countries are not subject to customs duties.
2. If the quantities to be taken on board appear to be too great, in relation to the number of crew and passengers and the presumed duration of the voyage, the customs administration may require the shipowners or captains to have these quantities determined by the commercial court or, failing this, by the local municipal officers.
3. In all cases, the number of crew members, the number of passengers and the quantities and types of food taken on board are indicated on the embarkation permit, which must be stamped by the customs officers.