GST Rules amendment effects renumbering of Rule 80 subrules and substitutes 'Central' for 'State' in Rule 90. Notification G.O.Ms.No.485 amends the Andhra Pradesh Goods and Services Tax Rules issued in G.O.Ms.No.275, declaring the amendments effective retrospectively from 30 June 2017. It re numbers sub rules in Rule 80 so that the existing sub rules (1) and (2) become (2) and (3), and substitutes the word 'Central' for 'State' in Rule 90(4).