Customs exemption amendment substitutes List 5 item eleven to include Nylon 12 and Ether Ester Elastomer via government notification. The Central Government amends the customs exemption schedule by substituting item (11) in List 5 of Notification No.12/2012-Customs to read 'Nylon-12 / Ether Ester Elastomer', thereby modifying the catalogue of goods covered by the miscellaneous exemption framework under the existing notification.