Exchange rate determination fixes conversion rates for specified foreign currencies for import and export from the notified effective date. Exercising authority under section 14 of the Customs Act, the Board issues a notification that supersedes a prior notification and fixes, from the stated effective date, rupee conversion rates for each listed foreign currency for import and export valuation. The instrument comprises two schedules: one specifying unit rates for major currencies and another specifying rates per one hundred units for currencies with smaller denominations, with separate entries for imported goods and for export goods.