1 General provisions. 2 Membership. 3 General assembly. 4 The Council. 5 Provisions common to the sessions of the general assembly and to the sessions of the council. 6 The Bureau. 7 The President of the association. 8 The treasurer. 9 The secretary general. 10 Finance. 11 The control commission. 12 Provisions common to the offices of president, treasurer and members of the control Commissions. 13 Procedures for elections and appointments. 14 Organisation and structures of technical activities. 15 Organisations and structure of regional activities. 16 Organisations and structure of research activities. 17 Revision of the Constitution. 18 Dissolution of the Assocication. 19 Final provisions.