Orders issued in accordance with the foregoing provisions shall be in writing.
§ 139a.
The Bundesrath (Federal Council) shall be empowered:
1. To entirely prohibit or to attach certain conditions to the employment of women and of young workers in certain branches of manufacture which involve special dangers to health or morality;
2. To grant exceptions to the provisions of §§ 135 (2) and (3), 136, 137 (1) to (3), in the case of factories requiring uninterrupted use of fire, or in which for other reasons, the nature of the business necessitates regular day and night work, also in the case of factories, a part of the business of which does not admit of regular shifts of equal duration, or is from its nature restricted to certain seasons;
3. To prevent the shortening or the omission of the intervals prescribed for young workers, in certain branches of manufacture, where the nature of the business, or consideration for the workers may seem to render it desirable;
4. To grant exceptions to the provisions of § 134 (1) and (2), in certain branches of manufacture in which pressure of business occurs regularly at certain times of the year, on condition that the daily working time does not exceed 13 hours, and on Saturday 10 hours.
In the cases under No. 2, the duration of weekly working time shall not exceed 36 hours for children, 60 hours for young persons, 65 hours for women workers, and 70 hours for young persons and women in brick and tile kilns.
Night work shall not exceed in duration 10 hours in 24, and in every shift one or more intervals, of an aggregate duration of at least one hour, shall be granted.
In the cases under No. 4, permission for overtime work for more than 40 days in the year may only be granted, on condition that the working time is so regulated that the average daily duration of working days does not exceed the regular legal working time.
The provisions laid down by decision of the Bundesrath (Federal Council) shall be limited as to time, and shall also be issued for certain specified districts. They shall be published in the Imperial Law Gazette, and shall be laid before the Reichstag at its next session.
V. Supervision.
§ 139b.