3. (1) The Government may make a scheme or schemes in accordance with the provisions of this Ordinance providing for the grant of relief in respect of the following injuries sustained during the continuance of hostilities, namely:-

(a) war injuries sustained by gainfully occupied persons (with such exceptions, if any, as may be specified in the scheme) and by persons of such other classes as may be so specified; and

(b) war service injuries sustained by civil defence volunteers.

(2) A scheme may authorise the Government, or any authority authorised by the Government to make payments under the scheme, in such circumstances and subject to such conditions as may be specified in the scheme, to make to or in respect of persons injured-

(a) payments by way of temporary allowance, which shall be payable only so long as the person injured is incapacitated for work by the injury and has not received any such payment as is mentioned in clause (b);

(b) payments otherwise than by way of temporary allowance, which shall be payable only where the injury causes serious and prolonged disablement or death; and

(c) payments for the purchase of or the grant at the cost of Government of artificial limbs or surgical or other appliances and payments for medical and surgical treatment.

(3) A scheme may empower the Government to make regulations for giving effect to the purposes of the scheme.

(4) A scheme may provide that it shall come into operation or shall be deemed to have come into operation on such date as may be specified therein.

(5) A scheme may be amended or rescinded at any time by the Government.

(6) Any decision of the Government or other authority empowered to make payments under a scheme as to the making, refusal or amount, or as to the continuance or discontinuance, of a payment under a scheme may be varied from time to time by a subsequent decision of the Government or such authority as the case may be, but save in so far as it is so varied shall be final and conclusive.