Exchange rate update: South African rand conversion rates revised for import and export under Customs notification, effective immediately. Central Board of Excise and Customs substitutes the Schedule-I entry for the South African rand in Notification No.121/2016-CUSTOMS (N.T.), revising the conversion rates for import goods and for export goods, with the amendment effective from 23rd September 2016, under the authority of the Customs Act and recorded as Notification No.122/2016-CUSTOMS (N.T.).