GST rate amendment adjusts classification and tax rate for specified polyethylene and polypropylene packaging goods. Amends the Central GST rate notification to omit specified entries from the 6% Schedule II and to insert new entries into the 9% Schedule III for woven and non woven polyethylene or polypropylene bags and sacks (including laminated types) and for flexible intermediate bulk containers, identifying applicable tariff headings; the amendments take effect on the stated commencement date.