On December 15, USAID MER Project held a seminar "Benchmarking in District Water Supply and Sewage. Benchmarking System Development and Key Aspects in Use of Its Results”. Almost 40 representatives of district water supply and sewage utilities, National Energy and Communal Services Regulatory Commission and KSCA took part in the seminar. USAID MERP experts told the audience about the essence and importance of the benchmarking concept in state regulation, its advantages and structure of the implementation process. The participants learnt about the international and European experience in application of benchmarking in the sector of water and sewage, as well as the current state and prospects of its implementation in Ukraine. In addition, the experts presented key directions and mechanism of benchmarking results application in district water supply and sewage sector of Ukraine. At the end of the seminar, the participants discussed together with the experts and developed their own proposals on implementation of international experience in benchmarking in Ukraine. This workshop is closely related to the previous workshop on incentive regulation, since the benchmarking system allows to accumulate the data required for introduction of incentive regulation.