Water Services Regulation Authority

The economic regulator for the water and wastewater sector in England and Wales.

Category: Environment and energy Regulators

Abbreviation: Ofwat

Also used as: OFWAT, water regulator, Water Services Regulation Authority

Official website: Visit Ofwat

Last reviewed: 3 August 2026

Ofwat is the economic regulator for the water and wastewater sector in England and Wales. It regulates water companies, sets price controls, monitors performance and protects consumer interests. It may appear in summaries about water bills, sewage discharges, company performance, investment, enforcement and reform of the water sector.

Related terms

Department for Environment, Food and Rural AffairsThe UK Government department responsible for the environment, farming, food, rural affairs and animal welfare.Environment AgencyThe public body responsible for environmental regulation and protection in England.Environmental Audit CommitteeA Commons select committee that examines environmental protection and sustainable development across government.