OC-O
Mixed Old Catholic ― Orthodox Commission
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
O-R
Orthodox ― Reformed Bilateral Conversations
O-M
Orthodox ― Methodist Dialogue
NCC-C
New Charismatic Churches ― Catholic Informal Conversations
Mn-SDA
Mennonite ― Seventh Day Adventist Dialogue
Mn-RC
Mennonite ― Catholic International Dialogue
Mn-R
Mennonite ― Reformed Dialogue
M-SA
Methodist ― Salvation Army Conversations