Question to the Department of Health and Social Care:

To ask His Majesty's Government, further to the Written Answer by Baroness Merron on 16 February (HL14539), whether they will ensure that any new water regulations include a clear requirement for water companies to support, maintain and, where appropriate, expand fluoridation schemes in their areas.

The maintenance and expansion of water fluoridation schemes are set out in the Water Industry Act 1991 and associated regulations. These provide the requirements that apply to water companies where my Rt Hon. Friend, the Secretary of State for Health and Social Care, proposes to enter, vary, or terminate arrangements for fluoridation of water.

There are no current plans to change these requirements through new regulations. However, the White Paper A New Vision for Water published in January 2026 confirms that, as long term reforms to the water industry are delivered, the Department for Environment, Food and Rural Affairs will work in partnership with the Department of Health and Social Care to support delivery of 10-Year Health Plan, which includes assessing further expansion of water fluoridation where oral health outcomes are poorest.