Appointment of commencement date: clause of Central Excise Tariff Amendment Act takes effect on government appointed date. By notification dated 23 January 1987, the Central Government, under clause (b) of Section 2 of the Central Excise Tariff (Amendment) Act, 1986, appoints the 10th day of February, 1987 as the operative commencement date for that clause, thereby giving effect to the specified provision from the government appointed date.