Tariff classification alignment updates customs exemption entries to conform with HSN 2022, effective from the stated date. Amendment of multiple customs exemption notifications to align exempted electronic, defense and related goods with the Harmonized System Nomenclature 2022, effective 1 January 2022, by substituting, omitting or revising specified tariff headings, item descriptions and table entries across several principal notifications and updating cross references to concessional import rules; corrigenda correct prior textual entries and notes record amendment histories.