(2)Notwithstanding anything contained in sub-section (1), where the Central Government, after considering the nature of any specified goods, the time, mode, route and the market price of the goods intended to be transported, the purpose of the transportation and the vulnerability of the specified area with regard to the illegal export of such goods, is satisfied that it is expedient in the public interest so to do, it may,-(i)by notification in the Official Gazette, specify goods of such class or description and of a market price exceeding such sum as that Government may notify; and different sums in relation to the specified goods of the same class or description, or different classes or descriptions, may be notified for the same specified area or for different specified areas, and(ii)direct that no person shall transport any goods so specified unless the transport voucher in relation to them has been countersigned by the proper officer.