Customs notification amendment: substitution of pesticide entry to cover Allethrin and its isomers in tariff schedule. Amendment to a customs exemption notification substitutes the tariff description for item No. 18, replacing 'D-Allethrin' with 'Allethrin and its isomers' under the executive power of sub-section (1) of section 25 of the Customs Act, 1962, thereby broadening the pesticide description in the Table annexed to Notification No. 18/93-Customs.