Tariff classification rules updated: broader classification for machined metal parts and multiple tariff item and duty revisions follow. Amendment revises classification rules to allow identifiable ready-to-use machined parts or components predominantly of iron, steel or aluminium made by casting or forging and not specified at six-digit level in Chapters 84, 85 or 87 to be classified under relevant tariff items in headings 8487, 8548 or 8708 irrespective of four-digit chapter classification, and makes multiple schedule changes by inserting, substituting and omitting tariff items and adjusting duty and related column entries across various chapters.