law: 4[3. Power of Central Government to authorise seaward artillery practice.-
  (1) The Central Government may, by notification in the Official Gazette, authorise the carrying out of seaward artillery practice over such area and during such period or periods as may be specified in the notification:
  Provided that there shall be an interval of at least fourteen days between the date of publication of such notification in the Official Gazette and the date of carrying out of seaward artillery practice.
  (2) The Central Government shall, as soon as may be, after the publication of a notification under sub-section (1), cause the substance thereof to be published-
  (a) in some newspaper circulating in, and in the language commonly understood in, the area specified in the notification; and
  (b) in such other manner as may be prescribed.
  (3) If any question arises whether the substance of a notification under sub-section (1) was published as required by sub-section (2), a certificate by the Collector of the district in which the notified area is situate that the substance of the notification was so published, shall be conclusive.