(1) Section 100 of the Principal Act is hereby amended by -
(a) the insertion in subsection (1) after paragraph (b) of the following paragraph:
"(bb) does not have an aggregate of reckonable income and reckonable earnings in excess of a prescribed amount in the last complete income tax year or in such subsequent period as a deciding officer or an appeals officer may consider appropriate,", and
(b) the substitution for subsection (2) of the following subsection:
"(2) The circumstances in which a woman is to be regarded for the purposes of this section as having been deserted by her husband shall be specified in regulations.".
(2) Paragraph (a) of subsection (1) shall not apply to any claim for deserted wife's benefit made before the commencement of this section.
(3) This section shall come into operation on such day as the Minister may appoint by order.