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(1). This Convention shall apply to any employment not dealt with in the following Conventions adopted by the International Labour Conference at its First, Second and Third Sessions respectively:
Convention fixing the minimum age for admission of children to industrial employment (Washington, 1919);
Convention fixing the minimum age for admission of children to employment at sea (Genoa, 1920);
Convention concerning the age for admission of children to employment in agriculture (Geneva, 1921).
The competent authority in each country shall, after consultation with the principal organisations of employers and workers concerned, define the line of division which separates the employments covered by this Convention from those dealt with in the three aforesaid Conventions.
(2). This Convention shall not apply to:
(a) employment in sea-fishing;
(b) work done in technical and professional schools, provided that such work is essentially of an educative character, is not intended for commercial profit, and is restricted, approved and supervised by public authority.
(3). It shall be open to the competent authority in each country to exempt from the application of this Convention:
(a) employment in establishments in which only members of the employer's family are employed, except employment which is harmful, prejudicial or dangerous within the meaning of Articles 3 and 5 of this Convention;
(b) domestic work in the family performed by members of that family.