Its responsibilities include the economic regulation of the water supply, sanitation and solid waste management, as well as national regulation of drinking water. In Chile, the powerful regulatory agency Superintendencia de Seruicios Sanitarios,5 is in charge of setting water tariffs and sanitation services, granting concessions, monitoring quality of service delivery including sewage treatment, as well as establishing norms and standards. Economic regulation is carried out through several complementary tools and actors.