Safeguard duty on acetone imposed with tiered ad valorem or per tonne rates and specified licence and country exemptions. Safeguard duty is imposed on acetone (sub heading 2914.11) after a safeguard finding of serious injury to domestic producers, with tiered rates applying as alternative ad valorem percentages or specified specific duties per metric tonne depending on import dates; the lower of the two applies. Exemptions are provided for imports under defined Advance Licences subject to actual user and non disposal conditions and for imports from notified developing countries except two specified nations, with Advance Licence types expressly defined.