Investment regulation is made up of several normative frameworks at the international, regional and local levels. It is not so easy to speak directly about Investment Law. Its existence is recent as a separate branch. International investment regulation is far from universal. The norms of international investments are more bilateral, multilateral and regionalized, and some of them have been established in the practice of international trade since antiquity (free movement, national treatment, declaration, diplomatic protection, ...). And with the waves of independence in Africa, Latin America and Asia, circumstances have contributed to the codification of certain substantial principles of sovereignty and freedom of States to orient the framework of investments according to national needs. With the globalization of the market, both private and public partners have agreed to develop, through the UN and the various chambers of commerce, direct and indirect standards
