OC-C
International Roman Catholic ― Old Catholic Dialogue Commission
O-RC
The Joint International Commission for Theological Dialogue Between the Roman Catholic Church and the Orthodox Church
NCC-C
New Charismatic Churches ― Catholic Informal Conversations
Mn-RC
Mennonite ― Catholic International Dialogue
M-RC
Joint Commission between the Roman Catholic Church and the World Methodist Council
L-RC
International Catholic ― Lutheran Theological Dialogue
L-R-RC
Joint Lutheran ― Reformed ― Roman Catholic Study Commission on ‘The Theology of Marriage and the Problem of Mixed Marriages’
L-Mn-RC
Lutheran ― Mennonite ― Catholic International Dialogue
JWG
The Joint Working Group Between the World Council of Churches and the Catholic Church
Iarccum
International Anglican ― Roman Catholic Commission for Unity and Mission