The document illustrates the observations with references to situations that happen or have happened in the countries of the region during the processes to improve the management of the water. It gives in addition updated information on aspects about institutional organization and legislation for the integrated water management, planning of the hydric resources, and creation and operation of organizations of water management, as well as an exhaustive analysis of the challenges that still must be surpassed to make possible the recommendations contained in chapter 18 of Program 21. A reader linked to the subjects of water management will find his own experiences.