GST classification clarifications for snack products, railway air conditioners, and vehicle seats set prospective rate treatment. GST rate and classification were clarified for extruded or expanded savoury food products, RMPU air conditioning machines for railways, and seats used in motor vehicles and two-wheelers. Extruded or expanded savoury or salted products falling under HS 1905 90 30 attract GST at 12% prospectively, while un-fried or un-cooked snack pellets continue at 5% and the past period remains taxable at 18%. RMPU air conditioning machines are classifiable under HS 8415. Seats for two-wheelers fall under HS 8714, and car seats under HS 9401, with the revised rate on car seats applying prospectively.