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(c) Undertakings engaged in building and civil engineering work, including constructional, repair, maintenance, alteration and demolition work. 2. The competent authority shall define the line of division which separates industry from agriculture, commerce and other non-industrial occupations. Article 2 For the purpose of this Convention the term " night " signifies a period of at least eleven consecutive hours, including an interval prescribed by the competent authority of at least seven consecutive hours falling between ten o'clock in the evening and seven o'clock in the morning ; the competent authority may prescribe different intervals for different areas, industries, undertakings or branches of industries or undertakings, but shall consult the employers' and workers' organizations concerned before prescribing an interval beginning after eleven o'clock in the evening. Article 3 Women without distinction of age shall not be employed during the night in any public or private industrial undertaking, or in any branch thereof, other than an undertaking in which only members of the same family are employed. Article 4 Article 3 shall not apply—(a) In cases of force majeure, when in any undertaking there occurs an interruption of work which it was impossible to foresee, and which is not of a recurring character ; (b) In cases where the work has to do with raw materials or materials in course of treatment which are subject to rapid deterioration when such night work is necessary to preserve the said materials from certain loss. Article 5 1. The prohibition of night work for women may be suspended by the Government, after consultation with the employers' and workers' organizations concerned, when in case of serious emergency the national interest demands it. 2. Such suspension shall be notified by the Government concerned to the DirectorGeneral of the International Labour Office in its annual report on the application of the Convention. Article 6 In industrial undertakings which are influenced by the seasons and in all cases where exceptional circumstances demand it, the night period may be reduced to ten hours on sixty days of the year. Article 7 In countries where the climate renders work by day particularly trying, the night period may be shorter than that prescribed in the above Articles if compensatory rest is accorded during the day. Article 8 This Convention does not apply to — (a) Women holding responsible positions of a managerial or technical character; and (b) Women employed in health and welfare services who are not ordinarily engaged in manual work.

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