13.—The Act of 1973 is hereby amended by—

( a ) the substitution in paragraph (a) of section 3 (1) of "eighteen hours" for "twenty-one hours", and

( b ) the substitution of "eighteen hours" for "twenty-one hours" in paragraph 8 of the First Schedule;

and the said paragraphs (a) and 8, as so amended, are set out in paragraphs 1 and 2, respectively, of the Table to this section.

TABLE

1. ( a ) employment of an employee who is normally expected to work for the same employer for less than eighteen hours in a week.

2. 8. Any week in which an employee is not normally expected to work for at least eighteen hours or more will not count in computing a period of service.