directives for the mutual recognition of diplomas, certificates and other evidence of formal qualifications. 2. For the same purpose, the Council shall, before the end of the transitional period, issue directives for the co-ordination of the provisions laid down by law, regulation or administrative action in Member States concerning the taking up and pursuit of activities as self-employed persons. The Council, acting unanimously on a proposal from the Commission and after consulting the European Parliament, shall decide on directives the implementation of which involves in at least one Member State amendment of the existing principles laid down by law governing the professions with respect to training and conditions of access for natural persons. In other cases the Council shall act in accordance with the procedure referred to in Article 189b. 3. In the case of the medical and allied and pharmaceutical professions, the progressive abolition of restrictions shall be dependent upon co-ordination of the conditions for their exercise in the various Member States." 14) The title of Chapter 4 shall be replaced by the following: "CHAPTER 4 CAPITAL AND PAYMENTS" 15) The following Articles shall be inserted: "ARTICLE 73a As from 1 January 1994, Articles 67 to 73 shall be replaced by Articles 73b, c, d, e, f and g. ARTICLE 73b 1. Within the framework of the provisions set out in this Chapter, all restrictions on the movement of capital between Member States and between Member States and third countries shall be prohibited. 2. Within the framework of the provisions set out in this Chapter, all restrictions on payments between Member States and between Member States and third countries shall be prohibited. ARTICLE 73c 1. The Provisions of Article 73b shall be without prejudice to the application to third countries, of any restrictions which exist on 31 December 1993 under national or Community law adopted in respect of the movement of capital to or from third countries involving direct investment - including investment in real estate - establishment, the provision of financial services or the admission of securities to capital markets. 2. Whilst endeavouring to achieve the objective of free movement of capital between Member States and third countries to the greatest extent possible and without prejudice to the other Chapters of this Treaty, the Council may, acting by a qualified majority on a proposal from the Commission, adopt measures on the movement of capital to or from third countries involving direct investment - including investment in real estate -, establishment, the provision of financial services or the admission of securities to capital markets. Unanimity shall be required for measures under this paragraph which constitute a step back in Community law as regards the liberalization of the movement of capital to or from third countries. ARTICLE 73d 1. The provisions of Article 73b shall be without prejudice to the right of Member States: