The local assembly of bishops is the Episcopal Conference of Chad (French: Episcopal Conference du Tchad, CET). The ECC is a member of the Association of Episcopal Conferences of the Central African Region and Symposium of Episcopal Conferences of Africa and Madagascar (SECAM).
List of Presidents of the Bishops' Conference:
1970-1981: Paul-Pierre-Yves Dalmais, Archbishop of N'Djamena
1981-1983: Henri Véniat, Bishop of Sarh
1983-2002: Charles Louis Joseph Vandame, Archbishop of N'Djamena
Since 2002: Jean-Claude Bouchard, Bishop of Palambari
References
Episcopal Conference of Chad Wikipedia(Text) CC BY-SA