Customs notification amendment extends exemption period for denatured ethyl alcohol, substituting the earlier expiry with a later 1986 date. The Central Government amends Notification No. 39/85-Customs (28 February 1985) by substituting the expiry wording in paragraph 2, replacing the previously specified expiry date with a later expiry date, thereby extending the temporal effect of the exemption for denatured ethyl alcohol.