3.(1) The Government may, by notification in the official Gazette, declare any place or places in which any part of the regular forces or the regular air force of Bangladesh is quartered or which, being in the vicinity of any such place or places, is or are required for the service of such forces to be a cantonment for the purposes of this Act and of all other enactments for the time being in force, and may, by a like notification, declare that any cantonment shall cease to be a cantonment. (2) The Government may, by a like notification, define the limits of any cantonment for the aforesaid purposes. (3) When any place is declared a cantonment for the first time, the Government may, until a Board is constituted in accordance with the provisions of this Act, by order make any provision which appears necessary to it either for the administration of the Cantonment or for the constitution of the Board. (4) The Government may, by notification in the official Gazette, direct that in any place declared a cantonment under sub-section (1) the provisions of any enactment relating to local self-government other than this Act shall have effect only to such extent or subject to such modifications, or that any authority constituted under any such enactment shall exercise authority only to such extent, as may be specified in the notification.