Exchange rate determination for customs: prescribed conversion rates set for import and export goods, replacing prior notification. The Central Board of Indirect Taxes and Customs, exercising its authority under the Customs Act, prescribes the rate of exchange for specified foreign currencies for customs purposes and supersedes the earlier notification; distinct rates are set in Schedule I for per unit conversions (with separate imported and export columns) and in Schedule II for per 100 unit conversions, these rates applying for import and export goods from the stated effective date.