Tariff valuation date determines applicability of new palm oil tariff values for consignments and warehouse clearances. Tariff values for specified palm oils take effect from the gazette publication date and are inclusive of insurance, freight and landing charges. The critical tariff valuation date is the date relevant to bills of entry and vessel entry inwards; if entry inwards is on or after the effective date the new values apply even if bills were filed earlier. Warehouse clearances on or after the effective date attract the new values regardless of earlier ex-bond presentation. Foreign currency conversion uses the government-notified exchange rate in force on the bill presentation date.