It refers to Items 159, 159.1 and 160 of the Import Control List (ICL), butter falling under tariff items 0405.10.10 or 0405.10.20, dairy spreads falling under tariff items 0405.20.10 or 0405.20.20, and fats and oils derived from milk, other than butter or dairy spreads falling under tariff items 0405.90.10 or 0405.90.20 in the list of tariff provisions set out in the schedule to the Customs Tarif