In some states, there is scope to increase tariff levels and change tariff structures to enhance efficient uses of water, allocate water where it creates most value, and at least cover the operation and maintenance costs. Setting Mexican water policies on a sustainable financial path will contribute to commitments 6 and 65 of the Pact, and will facilitate the implementation of commitments 50, 51 and 52. There is a need to identify and clearly allocate the responsibilities at each level of government; strengthen enforcement and compliance; and sharpen focus on the capacity and financial sustainability of utilities, the efficiency and quality of service provision, and the responsiveness to users. Commitment 52 of the Pact, to approve a new law on drinking water and sanitation, provides the opportunity and the political momentum to define responsibilities.