3. The National Supervisory Authorities Cooperation Board shall be composed of a representative and an alternate from the national supervisory authority of each Member State, both of whom shall be nominated by the national supervisory authority. The National Supervisory Authorities Cooperation Board shall elect a Chairperson and a Deputy-Chairperson from among its members. The National Supervisory Authorities Cooperation Board shall adopt its decisions by simple majority of its members. The Commission may attend the meetings of the National Supervisory Authorities Cooperation Board, without voting rights. The PRB may be invited to those meetings, on an ad hoc basis, without voting rights. Third countries may be invited to those meetings, on an ad hoc basis, without voting rights subject to the consensual agreement of the members of the National Supervisory Authorities Cooperation Board.