How to contribute effectively to the regional integration process in Africa, from organizations such as CEMAC, UEAC, UMAC, UEMOA, ECOWAS. How, in solidarity, to accelerate and achieve a harmonious development of the Member States of OHADA? What are the obstacles and potential reforms? This is the subject of this book. It clearly presents the rules that define the organization and functioning of the community institutions of this region. The principles set out are of an obvious "unigialism", that is to say whose application is at the same time effective, universal, general and unanimous. Through 5 parts, this book analyzes:- Treaties and Agreements on economic, monetary and financial cooperation;- The rules of economic organizations;- The rules of Financial Institutions;- The rules of legal and judicial institutions;- Trade, tax and investment protection agreements.