18. The regulation for internal management must include(1) the content of a convocation to a meeting of the board of directors or one of its committees or subcommittees, including the place of the meeting or the directives allowing to participate in the meeting using a technological means, where applicable;
(2) the terms and conditions concerning the convocation to the annual meeting of the board, the inclusion of subjects on the agenda and the documents to be sent to the members;
(3) the terms and conditions concerning the convocation, the inclusion of subjects on the agenda, the documents to be sent to the members and the frequency of the regular meetings, which may not be less than 6 per year;
(4) the number of members required for the convocation of a special meeting of the board and the terms and conditions concerning the convocation and the inclusion of subjects on the agenda of that meeting;
(5) the possibility for the board members to waive a notice of convocation or derogate from the formalities and time limits for the convocation;
(6) the number of members required for each of the union and employer parties to allow the board to validly deliberate and make decisions; and
(7) the cases in which and the conditions on which the members may participate in a board meeting using technological means allowing all participants to immediately communicate with each other.