Document Generated: 2022-06-22 Status: This is the original version (as it was originally made). (ii) a Health Board, constituted under section 2 of the National Health Service (Scotland) Act 1978(74); (iii) the National Waiting Times Centre Board established by article 3 of the National Waiting Times Centre Board (Scotland) Order 2002(75); (iv) NHS 24 established by article 3 of the NHS 24 (Scotland) Order 2001(76); (v) the Scottish Ambulance Service Board established by article 3 of the Scottish Ambulance Service Board Order 1999(77); and (vi) the State Hospitals Board for Scotland established by the State Hospitals Board for Scotland Order 1995(78); (d) in Northern Ireland, the Health and Social Care Trusts within the meaning of “HSC Trust” in section 31 of the Health and Social Care (Reform) Act (Northern Ireland) 2009(79). The drinking water supply and distribution subsector 9. 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. The digital infrastructure subsector 10.—(1) This paragraph describes the threshold requirements which apply to specified kinds of essential services in the digital infrastructure subsector. (2) For the essential service of Top Level Domain (”TLD”) Name Registries the threshold requirement in the United Kingdom is TLD Registries who service an average of 2 billion or more queries in 24 hours for domains registered within the Internet Corporation for Assigned Names and Numbers. (3) For the essential service of Domain Name System (“DNS”) Service providers the threshold requirement in the United Kingdom is— (a) DNS service providers with an establishment in the United Kingdom who provide DNS resolvers offered for use by publically accessible services, which service an average of 2,000,000 or more requesting DNS clients based in the United Kingdom in 24 hours; or (b) DNS service providers with an establishment in the United Kingdom who provide authoritative hosting of domain names, offered for use by publically accessible services, servicing 250,000 or more different active domain names. (4) For the essential service of Internet Exchange Point (IXP) Operators the threshold requirement in the United Kingdom is IXP Operators who have 50% or more annual market share amongst IXP Operators in the United Kingdom, in terms of interconnected autonomous systems, or who offer interconnectivity to 50% or more of Global Internet routes. (5) In this paragraph— (a) “DNS” is a reference to “domain name system” which means a hierarchical distributed naming system in a network which refers queries for domain names; (b) “DNS service provider” is a reference to “domain name system service provider” which means an entity which provides DNS services on the internet; (74) (75) (76) (77) (78) (79) There are no amendments relevant to this instrument. S.S.I. 2002/305. There are amendments not relevant to this instrument. S.S.I. 2001/137. There are amendments not relevant to this instrument. S.I. 1999/686. There are amendments not relevant to this instrument. S.I. 1995/574. There are amendments not relevant to this instrument. 2009 c. 1 (N.I.). There are amendments not relevant to this instrument. 37