# The Network and Information Systems Regulations 2018, Paragraph 9: The drinking water supply and distribution subsector


The threshold requirement which applies to the essential service of the supply of potable water in the United Kingdom is the supply of water to 200,000 or more people.

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Source: https://www.legislation.gov.uk/uksi/2018/506/schedule/2/paragraph/9 (the official version)
Page: https://openlegislation.uk/network-and-information-systems-regulations-2018/schedule-2/paragraph-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.