Port designation for export schemes expanded to add additional ports, altering notification conditions and duty credit rules. Multiple customs exemption notifications are amended to expand designated ports and land entry/exit points eligible under export promotion schemes; substitutions add additional ports and inland crossings in specified condition clauses. The amendments also insert a condition that an importer who does not claim exemption from the additional duty under section 3 shall be deemed not to have availed that exemption for calculating such duty, and permit availment of drawback or CENVAT credit of that additional duty against amounts debited in the certificate. Changes take effect on publication in the Official Gazette.