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Les données cartographiques originales de ces concessions ont été produites par WRI, le Ministère de l'Economie Forestière du Développement Durable et de l'Environnement (MEFDDE) et le Centre Nationale d'Inventaire et d'Aménagement des ressources Forestières et Fauniques (CNIAF) dans le cadre d'un projet conjoint financé par l'Organisation Internationale des Bois Tropicaux (OIBT). L'information inclue dans cette couche de données s'etend jusqu'au 04 mai 2016 avec l'apparition d'une nouvelle concession au nord du pays dans le département de la sangha appellée Karagoua. L' exploitation des forêts naturelles du domaine de l'Etat se fait conformément à l'article 65 du code forestier (Loi 16-2000 du 20 novembre 2000 portant code forestier) et les conditions de gestion sont fixées dans le Décret n° 2002-437 du 31 décembre 2002 fixant les conditions de gestion et d'utilisation des forêts. 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