most internation-: watercourse[s] [systems] in the world today, the development of contingency plans would be advisable, if not strictly necessary, since they help to avoid unnecessary damage to propetity, health, the ecosystem of the watercourse, amenities, and the marine environment. (7) Whiie watercourse States bear the primary responsibility for developing contingency plans, in many cases it will be appropriate to prepare them in co-operation with “other potentially affected States and competent international organizations" .Fo! example, the establishment of effective warning systems may necenaitate the ilrvolvement of other, non-watercourse State6 as well as international organisations with competence in that particular field. In addition, the co-ordination of response efforts might be most effectively handled by a competent international organization set up by t.he States concerned. In such Cases, paragraph 4 requires that watercoursfi States co-operate with the other States and any international organization or organisations concerned. D. E!!htson_whicb-G;nmme-aEeinY i&xl 313. The Commission would welcome the views of Governments either in t.he Sixth Committee of the General Assembly or in written form, in particular 011 the draft articles contained in annex I, Implementati,.n of the draft articlot;, as proposed by the Special Rapporteur. - 178 -CHAPTER V STATE RESPONSIBILITY , A, IntroBuc_tion 314. The general plan adopted by the Commission at its twenty-seventh session, in 1975, for the draft articles on the topic1 “State responsibility” envisaged the structure of the draft articles as followsa Part One would concern the origin of international responsibilityr Part Two would concern the content, forms and degrees of international responsibility) and a pO66ible Part Three, which the Commission might decide to include, could concern the question of the settlement of disputes and the implementation (ti en creuvre) of international reoponsibility. 2.W 315, The Commission at its thirty-second session, in 1980, provisionally adopted on first reading &&QxM of thedrm ,concerning “the
**Analysis**
The text appears to be discussing the importance of developing contingency plans for watercourse systems, which suggests a strong connection to the natural environment and potential environmental disasters. The language used is formal and technical, indicating a focus on international relations and cooperation. The text also mentions the role of international organizations and the need for cooperation between states, which further supports the idea that this text is related to international affairs.

**Category**
Natural resources and environment, International trade