Title XIV. Of Cooperation, of the Treaties and International Agreements
Article 217
The Republic of Chad may conclude with other States agreements of cooperation or of association on the basis of the principles of equality, of mutual respect of sovereignty, of territorial integrity, of reciprocal benefits and of national dignity.
It may create with the States organs of common management, of coordination and of cooperation within the economic, monetary, financial, scientific, technical, military and cultural domains.
Article 218
The President of the Republic negotiates and ratifies the treaties. He is informed of any negotiation tending to the conclusion of an international agreement not submitted to ratification.
Article 219
The peace treaties, the defense treaties, the treaties of commerce, the treaties relative to the use of the national territory or to the exploitation of the natural resources, the agreements relative to international organization, those which engage the finances of the State or those which are relative to the status [état] of persons, may only be approved or ratified after the authorization of the National Assembly.
The treaties and agreements only take effect after having been approved and ratified.
No cession, no exchange, no addition of territory, is valid without the consent of the People expressed by way of referendum.
Article 220
If the Constitutional Council, referred to [the matter] by the President of the Republic or by the President of the National Assembly, has declared that an international engagement contains a clause contrary to the Constitution, the authorization of ratification may only intervene after the revision of the Constitution.
Article 221
The Treaties or Agreements regularly ratified have, on their publication, an authority superior to that of the national laws, under reserve for each Agreement or Treaty of its application by the other party.