Conference of bishops

An Episcopal Conference, Conference of Bishops, or National Conference of Bishops is an official assembly of the bishops of the Catholic Church in a given territory. Episcopal conferences have long existed as informal entities; more than forty existed before the Second Vatican Council. They were first established as formal bodies by the Second Vatican Council (Christus Dominus, 38), and implemented by Pope Paul VI's 1966 motu proprio Ecclesiae sanctae. The operation, authority, and responsibilities of episcopal conferences are currently governed by the 1983 Code of Canon Law (see especially canons 447-459). In addition, there are assemblies of bishops which include the bishops of different rites in a nation, both Eastern Catholic and Latin Catholic; these are described in canon 322 §2 of the Code of Canons of the Eastern Churches.

The nature of episcopal conferences, and their magisterial authority in particular, was subsequently clarified by Pope John Paul II's 1998 motu proprio. Apostolos suos which stated that the declarations of such conferences "constitute authentic magisterium" when approved unanimously by the conference; otherwise the conference must achieve a two-thirds majority and seek the recognitio, that is, recognition of approval, of the Holy See, which they will not receive if the majority "is not substantial".

Episcopal conferences are generally defined by geographic borders, with all the bishops in a given country belonging to the same conference — which might also include neighboring countries. Certain tasks and authority are assigned to episcopal conferences, particularly with regard to setting the liturgical norms for the Mass. Episcopal conferences receive their authority under universal law or particular mandates. In certain circumstances, as defined by canon law, the decisions of an episcopal conference are subject to ratification from the Holy See. Individual bishops do not relinquish their authority to the conference, and remain responsible to the Pope for the governance of their respective dioceses.

...
Wikipedia