Article 25
Regulation
1.Watercourse States shall cooperate, where appropriate, to respond to needs or opportunities for
regulation of the flow of the waters of an international watercourse.
2.Unless otherwise agreed, watercourse States shall participate on an equitable basis in the
construction and maintenance or defrayal of the costs of such regulation works as they may have agreed
to undertake.
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3.For the purposes of this article, “regulation” means the use of hydraulic works or any other
continuing measure to alter, vary or otherwise control the flow of the waters of an international
watercourse