2. Regulation 100 of the Principal Regulations is amended—
(a) by omitting from paragraph 28 (b) all the words after “every” and substituting “8 men employed on the same shift and one for every 8 women employed on the same shift, and one for any number less than 8 such men or such women, as the case requires; and”; and
(b) by omitting from paragraph 28 (c) all the words after “every” and substituting “10 men employed on the same shift and one for every 10 women employed on the same shift, and one for any number less than 10 such men or such women, as the case requires.”.