In 2002, the Supreme Court established that drinking water services are not “products” that can be charged by the utilities, but “rights” against service provision by government institutions, and therefore utilities are not entitled to approve tariffs, only state congresses can. There is some flexibility, though, as the state of Jalisco reported that the capacity to set tariffs had been taken away from Congress and given to citizen boards. Overall, there is not a single model on how tariffs are set, but a heterogeneous situation across the territory.