Page 9 of 10 (a) Government, employers and trade unions contribute towards workers education, training and skills development; and (b) All workers have the right to paid study leave subject to the provisions of ILO Conventions and to a collective agreement. ARTICLE 16 IMPLEMENTATION OF THE CHARTER 1. The responsibility for the implementation of this Charter lies with the national tripartite institutions and regional structures. 2. The institutions and structures referred to in paragraph 1 of this Article shall promote social legislation and equitable growth within the Region and prevent non-implementation of this Charter. 3. All Member States shall submit regular progress reports to the Secretariat. 4. The most representative organisation of employers and workers shall be consulted in the preparation of the reports referred to in paragraph 3. ARTICLE 17 ENTRY INTO FORCE This Charter shall enter into force upon signature by Member States. ARTICLE 18 AMENDMENTS 1. An amendment to this Charter shall be adopted by a decision of three-quarters of the Member States. 2. A proposal for the amendment to this Charter may be made to the Secretariat by any Member State for preliminary consideration by the social partners provided that the proposed amendment shall not be submitted for preliminary consideration until all Member States have been duly notified of it and a period of three months has elapsed after such notification. IN WITNESS WHEREOF, WE the Heads of State or Government, or duly authorised Representatives of SADC Member States, has signed this Charter. DONE at Dar-es-Salaam on this 26.. day of August 2003, in three (3) original texts, in the English, French and Portuguese Languages, all texts being equally authentic. REPUBLIC OF ANGOLA REPUBLIC OF BOTSWANA http://www.sadc.int/index/print/page/171 7/23/2009