Commencement of Amendment Act: government appoints operative date for the Act's provisions to come into force. The central government, exercising the power under sub section (2) of section 1 of the Central Excise Tariff (Amendment) Act, 2004, appoints a specific operative date for the coming into force of that Act's provisions by issuing a Removal of Difficulty Order in the form of a notification to operationalise the amendment.