Water and wastewater tariffs in Armenia are very low and do not cover operating and maintenance (O&M) expenditures or provide sufficient funds to adequately deal with asset rehabilitation. Consequently, there are looming concerns about the long-term sustainability of service provision by existing public-private partnership (PPP) arrangements. The World Bank Group (WBG) requested assistance in developing a water sector tariff study for Armenia to assess the levels of the current water and wastewater tariffs in terms of cost-recovery.  The World Bank wanted a description of a number of tariff scenarios, taking into account financial, economic, efficiency and equity objectives.  Lastly, a plan of actions would be developed to move from the current tariff levels and structure to an agreed future tariff level and structure.