Regulatory duty of excise imposed by central government via notification, added to existing excise duties and governed by Excise Act. Regulatory duty of excise is imposed by the Central Government by notification on goods in the First Schedule to the Central Excises Act to regulate consumption, as a value based levy capped at fifteen percent and additive to existing excise duties. The duty is for Union purposes with proceeds not distributed to States. The Central Excises Act and its rules, including refunds and exemptions, apply to levy and collection of the regulatory duty so far as practicable, and each notification must be placed before both Houses of Parliament promptly.