In addition, a representative of the state where the RBO is located, as well as representatives of the municipalities within the boundaries of the RBO, can participate with voice and vote. A representative from users can also participate, but without the right to vote, or representatives of the river basin councils (RBCs) can take part on the consultative council. According to the 2004 National Water Law (Article 13 BIS), the RBCs are composed of a mix of representatives, from the federal, state and municipal government, as well as users and civil organisations. Conflictos y Riesgos para el Diseno de las Politicos Publicas, Senado de La Republica, Mexico D.F., Mexico. La Expericncia de los COTAS”, based on a presentation during the CIESAS-IRD workshop ‘Transiciones en materia de tenencia de la tierra y cambio social”, 9-11 March 1999, Mexico City.