The plenary sessions of the KCCB are attended by all the diocesan bishops, emeritus and auxiliary bishops, the apostolic vicar, and the military chaplaincy.
The Conference accomplishes its mission through the Catholic Secretariat which, through the Episcopal Commissions, coordinates and implements the decisions of the plenary assembly, providing the appropriate technical support.
Currently, there are 15 committees reporting to the KCCB: liturgy, doctrine, lay apostolate, mission, justice and peace, ecumenism, interreligious dialogue, refugees, and others.
The KCCB is a member of the Association of Member Episcopal Conferences in Eastern Africa (AMECEA) and Symposium of Episcopal Conferences of Africa and Madagascar (SECAM).
1969-1970: John Joseph McCarthy, the Archbishop of Nairobi 1970-1976: Maurice Michael Otunga, Cardinal, Archbishop of Nairobi 1976-1982: John Njenga, bishop of Eldoret 1982-1988: Raphael Ndingi Mwana'a Nzeki, Bishop of Nakuru 1988-1991: Nicodemus Kirima, Archbishop of Nyeri 1991-1997: Zacchaeus Okoth, Archbishop of Kisumu 1997-2003: John Njue, Bishop of Embu 2003-2006: Cornelius Arap Korir Kipng'eno, Bishop of Eldoret 2006-2015: John Njue, Cardinal, Archbishop of Nairobi 2015- : Philip Arnold Subira Anyolo, Bishop of Homabay