The TEC consists of the following institutions: the Plenary Assembly, the Permanent Council, the Secretary-General, eight departments, three research units, eight commissions.
The authority and responsibility for managing the activities of TEC are granted Plenary Assembly, composed of all members, which meets once a year and is chaired by the President of the Conference.
The management of the TEC is instead assigned to the Permanent Council, assisted by the Secretariat General.
The duties of the Secretary General are to organize the work of the Plenary Assembly, to implement its decisions, to liaise between the dioceses of the country.
The TEC is then composed of eight departments (finance, pastoral, health, charity, communications, lay apostolate, education and seminars, liturgy), three units (including the ecclesiastical charge of building) and eight Commissions (armed forces and prisons, Migrants, Theology, Canon Law, Justice and Peace, Ecumenism, Consecrated Life).