2. Importation: Determination of correct customs tariff schedule number of an imported item, for applying the appropriate duty (tariff) rate, together with associated rules and regulations.
3. Shipping: (1) Degree of seaworthiness of a ship as determined by qualified surveyors on the basis of factors such as its construction, material used, and size. This classification is awarded for a certain period and the ship must be resurveyed after that (or before in case of an accident) to retain the original rating. (2) Assignment of a category to a specific shipment, for applying appropriate class rate, together with associated rules and regulations.