for the day by a notice posted under regulation 10, he may employ during that interval any women or young persons who are not to be employed overtime on that day, but save as aforesaid the provisions of these regulations relating to continuous employment and intervals for meals or rest shall apply to overtime employment in like manner as they apply to other employment.
(5) If the Commissioner is satisfied that overtime employment in any industrial undertaking of women or young persons, in accordance with the provisions of this regulation, in any process will prejudicially affect the health of such women or young persons, or any class of them, he may by notice in writing served upon the proprietor thereof either prohibit the overtime employment in that process of such women or young persons, or such class of them, or make such further restrictions as to the amount of such overtime employ- ment or otherwise as he thinks fit.
(6) Where the Commissioner is satisfied that work in any class or description of industrial under- taking is subject to seasonal or other special pressure, he may by order published in the Gazette as respects any class or description of industrial undertaking-
(a) increase for women or young persons, ex- ployed in any specified process, during any period of such pressure, the hours of work and the period of employment allowed in a day under this regulation, so, however, that the increase shall only take place in such number of weeks, not exceeding eight in any year, as may be specified in the order; (6) increase the hours of overtime employment allowed for an industrial undertaking under this regulation in a year to an aggregate not exceeding two hundred hours.
(7) The Commissioner may authorize in writing the increase of the aggregate number of hours of over- time employment allowed for an industrial under- taking under this regulation if he is satisfied that the increase is necessary by reason of unforeseen pressure of work due to sudden orders, or by reason of a
breakdown of machinery or plant or other unforeseen emergency,
(8) For the purpose of this regulation, the em- ployment of women or young persons in different parts of any industrial undertaking or the employment of different sets of women or young persons in different processes may, with the authority in writing of the Commissioner and subject to such conditions as he may by such authorization specify, be treated, for the purposes of reckoning hours of overtime employment, as if it were employment in different undertakings.
(9) If the Commissioner is satisfied that the nature of the business carried on in any industrial undertaking involves the overtime employment of different women or young persons on different occa- sions to such an extent that the provisions of this regulation limiting overtime employment by reference to the industrial undertaking would be unreasonable or inappropriate, he may grant permission in writing that such undertaking may, in lieu of complying with the said provisions, comply with such provisions limiting overtime employment by reference to the individual woman or young person as
may be specified in such consent:
Provided that no woman or young person shall be employed overtime in such undertaking for more than one hundred and fifty hours in any year. (10) For the purposes of this regulation—
(a) the expression "overtime employment" means, in relation to any woman or young person, any period during which that woman or young person is at work in the industrial undertaking outside the period of employ- ment fixed for the day for that woman or young person by a notice under regulation 10; and
(b) in reckoning the aggregate hours of over- time employment, account shall be taken only of any period during which any woman or young person is employed in that indus- trial undertaking beyond the maximum hours prescribed in sub-paragraph (a) of paragraph (I) of regulation 9 or either earlier or later. as the case may be, than the hours prescribed