(1) The Principal Act is hereby amended by the substitution for Chapter 3 of Part II of the following Chapter:
"Chapter 3 Maternity Allowance
24. Title to and duration of allowance.
(1) Subject to this Act, a woman shall be entitled to a maternity allowance if -
(a) it is certified by a registered medical practitioneror otherwise to the satisfaction of the Minister that it is to be expected that she will be confined in a week specified in the certificate (hereafter in this section referred to as 'the expected week of confinement'), not being more than the prescribed number of weeks after that in which the certificate is given, and
(b) she is, immediately before the first day of maternity leave, an employed contributor, or it is certified by her employer that she may resume employment after the end of the period of maternity leave, where such employment is an employment specified in Part I of the First Schedule and is not an employment specified in Part II of that Schedule, and