What is the Water Supply Business Guidelines?
Established in January 2005 by the Japan Water Works Association, which is made up of water supply business related organizations nationwide, with the aim of improving management efficiency, improving business management transparency, and improving the service level of the Japanese water supply business. It is a standard applied to water utilities nationwide. It was revised in March 2016.
Water supply business guideline business index (2019 version) (PDF: 965KB)
For inquiries about water supply, please contact Water Works Bureau Customer Service Center.
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