Customs exemption amendments expand duty-free imports for blind aids, research imports and adjust tariff lists accordingly. The Central Government, under section 25(1) of the Customs Act, 1962, directs amendments to specified customs exemption notifications by inserting a new duty-free entry for tangible appliances, vocational aids and specially designed articles for the blind when imported for personal use; broadening eligible security forces for bomb-detection imports; adding parts, consumables and live animals for experimental purposes subject to prescribed certificates; inserting specified knitting machinery; and omitting, substituting and inserting multiple schedule entries across Lists A, B and C to clarify tariff and item descriptions.