Appointment of State tax commissioners under GST Act designates excise and taxation officers to perform State tax functions. The Governor, under section 3 of the Haryana Goods and Services Tax Act, 2017, designates the Additional Excise & Taxation Commissioner as Additional Commissioner of State tax; Joint Excise & Taxation Commissioner as Joint Commissioner of State tax; Deputy Excise & Taxation Commissioner as Deputy Commissioner of State tax; Excise & Taxation Officer as Excise & Taxation Officer of State tax; and Assistant Excise & Taxation Officer as Assistant Excise & Taxation Officer of State tax, with the notification effective from 22nd June, 2017.