 The six French public water agencies regularly publish the results of water tariff surveys ("Observatoires de Prix") that they carry out among service providers in the respective areas they cover comparting tariff levels.According to a 2003 study by the French Supreme Audit Agency ("Cour des Comptes"), the complexity of water tariffs makes them difficult to understand for users despite efforts to improve the presentation of water bills.The agency also states that flat-rate tariffs that are not linked to consumption levels still persist, although the 1992 water law aimed at linking water tariffs to consumption.