Canalisation of petroleum products assigned to a designated canalising agency, with crude exempt for private and joint refineries' own use. Canalisation is imposed on imports of specified petroleum products, requiring importation through a designated canalising agency, while expressly exempting private and joint sector refineries from import licence requirements when importing crude for actual use in their own refineries; corresponding ITC(HS) entries for crude petroleum and a furnace oil classification are amended to reflect canalised and free import status respectively.