Extension of exemption notification continues the expiry of the customs exemption for coking coal into the following year. Central Government amends paragraph 2 of Notification No.166-Customs (dated 19 August 1980) by substituting the previously prescribed expiry date with a later expiry date, exercising powers under section 25(1) of the Customs Act, 1962, to continue the operation of the miscellaneous exemption for coking coal in the public interest.