GST Appellate Tribunal service rules define appointment coverage, commencement, and scope for tribunal leadership and members. The Goods and Services Tax Appellate Tribunal (Appointment and Conditions of Service of President and Members) Rules, 2023 supersede the 2019 rules, except for prior acts or omissions, and come into force on publication in the Official Gazette. They apply to the President, Judicial Member, Technical Member (Centre) and Technical Member (State) of the Principal Bench and State Bench of the Goods and Services Tax Appellate Tribunal.