| Sectors | Subsectors | Categories of entities |
| | | — | Electricity undertakings as defined in Article 2, point (57), of Directive (EU) 2019/944 of the European Parliament and of the Council (1), which carry out the function of ‘supply’ as defined in Article 2, point (12), of that Directive |
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| — | Distribution system operators as defined in Article 2, point (29), of Directive (EU) 2019/944 |
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| — | Transmission system operators as defined in Article 2, point (35), of Directive (EU) 2019/944 |
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| — | Producers as defined in Article 2, point (38), of Directive (EU) 2019/944 |
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| — | Nominated electricity market operators as defined in Article 2, point (8), of Regulation (EU) 2019/943 of the European Parliament and of the Council (2) |
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| | | — | Market participants as defined in Article 2, point (25), of Regulation (EU) 2019/943 providing aggregation, demand response or energy storage services as defined in Article 2, points (18), (20) and (59), of Directive (EU) 2019/944 |
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| (b) | District heating and cooling |
| | — | Operators of district heating or district cooling as defined in Article 2, point (19), of Directive (EU) 2018/2001 of the European Parliament and of the Council (3) |
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| | — | Operators of oil transmission pipelines |
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| — | Operators of oil production, refining and treatment facilities, storage and transmission |
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| — | Central stockholding entities as defined in Article 2, point (f), of Council Directive 2009/119/EC (4) |
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| | | — | Supply undertakings as defined in Article 2, point (8), of Directive 2009/73/EC of the European Parliament and of the Council (5) |
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| — | Distribution system operators as defined in Article 2, point (6), of Directive 2009/73/EC |
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| — | Transmission system operators as defined in Article 2, point (4), of Directive 2009/73/EC |
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| — | Storage system operators as defined in Article 2, point (10), of Directive 2009/73/EC |
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| — | LNG system operators as defined in Article 2, point (12), of Directive 2009/73/EC |
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| — | Natural gas undertakings as defined in Article 2, point (1), of Directive 2009/73/EC |
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| — | Operators of natural gas refining and treatment facilities |
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| | — | Operators of hydrogen production, storage and transmission |
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| | | — | Air carriers as defined in Article 3, point (4), of Regulation (EC) No 300/2008 used for commercial purposes |
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| — | Airport managing bodies as defined in Article 2, point (2), of Directive 2009/12/EC of the European Parliament and of the Council (6), airports as defined in Article 2, point (1), of that Directive, including the core airports listed in Section 2 of Annex II to Regulation (EU) No 1315/2013 of the European Parliament and of the Council (7), and entities operating ancillary installations contained within airports |
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| — | Traffic management control operators providing air traffic control (ATC) services as defined in Article 2, point (1), of Regulation (EC) No 549/2004 of the European Parliament and of the Council (8) |
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| | | — | Infrastructure managers as defined in Article 3, point (2), of Directive 2012/34/EU of the European Parliament and of the Council (9) |
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| — | Railway undertakings as defined in Article 3, point (1), of Directive 2012/34/EU and operators of service facilities as defined in Article 3, point (12), of that Directive |
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| | | — | Inland, sea and coastal passenger and freight water transport companies, as defined for maritime transport in Annex I to Regulation (EC) No 725/2004, not including the individual vessels operated by those companies |
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| | | — | Managing bodies of ports as defined in Article 3, point (1), of Directive 2005/65/EC, including their port facilities as defined in Article 2, point (11), of Regulation (EC) No 725/2004, and entities operating works and equipment contained within ports |
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| — | Operators of vessel traffic services (VTS) as defined in Article 3, point (o), of Directive 2002/59/EC of the European Parliament and of the Council (10) |
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| | | — | Road authorities as defined in Article 2, point (12), of Commission Delegated Regulation (EU) 2015/962 (11) responsible for traffic management control, excluding public entities for whom traffic-management or the operation of intelligent transport systems is a non-essential part of their general activity |
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| — | Operators of Intelligent Transport Systems as defined in Article 4, point (1), of Directive 2010/40/EU of the European Parliament and of the Council (12) |
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| | | — | Public service operators as defined in Article 2, point (d), of Regulation (EC) No 1370/2007 of the European Parliament and of the Council (13) |
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| | | — | Credit institutions as defined in Article 4, point (1), of Regulation (EU) No 575/2013 |
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| 4. | Financial market infrastructure |
| | | — | Operators of trading venues as defined in Article 4, point (24), of Directive 2014/65/EU |
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| — | Central counterparties (CCPs) as defined in Article 2, point (1), of Regulation (EU) No 648/2012 |
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| | | — | Healthcare providers as defined in Article 3, point (g), of Directive 2011/24/EU of the European Parliament and of the Council (14) |
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| — | EU reference laboratories as referred to in Article 15 of Regulation (EU) 2022/2371 of the European Parliament and of the Council (15) |
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| — | Entities carrying out research and development activities of medicinal products as defined in Article 1, point (2), of Directive 2001/83/EC of the European Parliament and of the Council (16) |
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| | | — | Entities manufacturing basic pharmaceutical products and pharmaceutical preparations as referred to in Section C division 21 of NACE Rev. 2 |
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| — | Entities manufacturing medical devices considered as critical during a public health emergency (‘public health emergency critical devices list’) within the meaning of Article 22 of Regulation (EU) 2022/123 of the European Parliament and of the Council (17) |
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| — | Entities holding a distribution authorisation as referred to in Article 79 of Directive 2001/83/EC |
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| | | — | Suppliers and distributors of water intended for human consumption as defined in Article 2, point (1)(a), of Directive (EU) 2020/2184 of the European Parliament and of the Council (18), excluding distributors for which distribution of water for human consumption is a non-essential part of their general activity of distributing other commodities and goods |
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| | | — | Undertakings collecting, disposing of or treating urban waste water, domestic waste water or industrial waste water as defined in Article 2, points (1), (2) and (3), of Council Directive 91/271/EEC (19), excluding undertakings for which collecting, disposing of or treating urban waste water, domestic waste water or industrial waste water is a non-essential part of their general activity |
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| | | — | Providers of internet exchange points as defined in Article 6, point (18), of Directive (EU) 2022/2555 |
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| — | DNS service providers as defined in Article 6, point (20), of Directive (EU) 2022/2555, excluding operators of root name servers |
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| — | top-level-domain name registries as defined in Article 6, point (21), of Directive (EU) 2022/2555 |
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| — | Providers of cloud computing services as defined in Article 6, point (30), of Directive (EU) 2022/2555 |
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| — | Providers of data centre services as defined in Article 6, point (31), of Directive (EU) 2022/2555 |
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| | | — | Providers of content delivery networks as defined in Article 6, point (32), of Directive (EU) 2022/2555 |
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| — | Trust service providers as defined in Article 3, point (19), of Regulation (EU) No 910/2014 of the European Parliament and of the Council (20) |
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| — | Providers of public electronic communications networks as defined in Article 2, point (8), of Directive (EU) 2018/1972 of the European Parliament and of the Council (21) |
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| — | Providers of electronic communications services as defined in Article 2, point (4), of Directive (EU) 2018/1972 insofar as their services are publicly available |
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| | | — | Public administration entities of central governments as defined by Member States in accordance with national law |
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| | | — | Operators of ground-based infrastructure, owned, managed and operated by Member States or by private parties, that support the provision of space-based services, excluding providers of public electronic communications networks as defined in Article 2, point (8), of Directive (EU) 2018/1972 |
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| 11. | Production, processing and distribution of food |
| | | — | Food businesses as defined in Article 3, point (2), of Regulation (EC) No 178/2002 of the European Parliament and of the Council (22) which are engaged exclusively in logistics and wholesale distribution and large scale industrial production and processing |
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