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1. This Convention shall also apply to persons employed in such of the following establishments as the Member ratifying the Convention may specify in a declaration accompanying its ratification:
(a) establishments, institutions and administrative services providing personal services;
(b) post and telecommunications services;
(c) newspaper undertakings; and
(d) theatres and places of public entertainment.
2. Any Member which has ratified this Convention may subsequently communicate to the Director-General of the International Labour Office a declaration accepting the obligations of the Convention in respect of establishments referred to in the preceding paragraph which are not already specified in a previous declaration.
3. Each Member which has ratified this Convention shall indicate in its annual reports under article 22 of the Constitution of the International Labour Organisation to what extent effect has been given or is proposed to be given to the provisions of the Convention in respect of such establishments referred to in paragraph 1 of this Article as are not covered in virtue of a declaration made in conformity with paragraphs 1 or 2 of this Article, and any progress which may have been made with a view to the progressive application of the Convention in such establishments.