A duty is imposed to all goods being imported (except to exempted items),
and it may vary depending on the nature of the good. A tariff is however,
an additional fee charged on selected goods imported to the country
generally in aim to discourage the import of those goods to protect local
economies and jobs. Imported goods are classified using the HS and HTS code
to determine the applied duty and tariff levied on the shipment.
Follow this link that contains the
unified custom duty for GCC states on all goods