Pharmaceutical Good Manufacturing Practice Regulations Article 37

Chinese herbal medicine factories shall, in accordance with product type, content and dosage form, separately store and appropriately mark labels and other labeling materials; storage areas for aforesaid materials may not be entered without the consent of the personnel in charge.Packaging or labeling materials that have expired or are not approved for use shall be returned or destroyed. The amounts of labeling materials received, used and returned shall be kept track of, and no discrepancies shall be allowed.Unused portions of labeling materials printed with batch numbers shall be destroyed; unused labeling materials that are not printed with batch numbers shall be appropriately identified and stored.