These functions remain underdeveloped in Mexico (Figure 14.7), and would benefit from greater clarity about their allocation. The necessary accompaniment to increased autonomy of water operators is the establishment of appropriate accountability mechanisms, such as a consolidated monitoring framework for water supply and sanitation (involving performance indicators agreed by all) and strengthened users’ participation in the consultative bodies of water utilities and in water decision making. Tariff regulation, while not the only determinant of the financial sustainability of water operators (Figure 14.8), is an important one.