3. (1) The Government may, by notification in the official Gazette, exempt, subject to such conditions, if any, as may be specified therein, any local fishing vessel or class of vessels from the provisions of Part III for such period as may be specified in the notification. (2) The Government may, by notification in the official Gazette, declare zone in which only non mechanised local fishing vessels or mechanised local fishing vessels of such tonnage as the Government may, by notification in the official Gazette determine, may engage in fishing operation or in which fishing operations by other fishing vessels may be restricted.