Article 3 of the GCC Common Excise Tax Agreement establishes the basis for charging excise tax. It specifies that the tax shall be imposed on goods deemed harmful to human health or the environment, as well as on luxury goods. The definitive list of these excise goods, along with the applicable tax rates, is not contained within the Agreement itself but is determined by the Ministerial Committee. Crucially, this Article grants the Ministerial Committee the ongoing authority to amend both the schedule of excise goods and the tax rates levied upon them, ensuring the framework remains adaptable.