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Côte d’Ivoire
Practice Relating to Rule 75. Riot Control Agents
Côte d’Ivoire’s Teaching Manual (2007) provides in Book IV (Instruction of heads of division and company commanders): “The use of riot control agents, including tear gas and other gases which have debilitating but no permanent effects, is prohibited as a method of warfare.” 
Côte d’Ivoire, Droit de la guerre, Manuel d’instruction, Livre IV: Instruction du chef de section et du commandant de compagnie, Manuel de l’élève, Ministère de la Défense, Forces Armées Nationales, November 2007, p. 54.