MT-RC – India
Joint Commission Between the Catholic Church and the Malankara Mar Thoma Syrian Church
SDA-C
Seventh Day Adventist ― Catholic Informal Conversations
SA-C
Conversations Between the Pontifical Council for Promoting Christian Unity and the Salvation Army
R-RC
International Reformed Catholic Dialogue
Pe-RC
Pentecostal ― Roman Catholic Dialogue
OO-RC – Syr-India
Joint Commission between the Catholic Church and the Malankara Syrian Orthodox Church (India)
OO-RC – India
Joint Commission between the Catholic Church and the Malankara Orthodox Syrian Church (Autocephalous since 1975 under Catholicos Baselios Mar Thoma Mathews II)
OO-RC – Copt
International Joint Commission between the Catholic Church and the Coptic Orthodox Church
OC-RC
International Roman Catholic ― Old Catholic Dialogue Commission
OO-RC
International Joint Commission for Theological Dialogue between the Catholic Church and the Oriental Orthodox Churches