NIS2 scope · Annex I & II

NIS2 sectors: the complete list of 18 regulated sectors

The NIS2 Directive (and OUG 155/2024 in Romania) regulates 18 sectors split between Annex I (11 sectors of high criticality — essential entities) and Annex II (7 other critical sectors — important entities). Below is the full breakdown with subsectors and DNSC codes.

Updated: June 2026 · Source: Directive (EU) 2022/2555, Annexes I & II

Annex I — Sectors of high criticality (11)

  1. Energy — electricity, district heating/cooling, oil, gas, hydrogen (DNSC §101)
  2. Transport — air, rail, water, road (DNSC §102)
  3. Banking — credit institutions (DNSC §103)
  4. Financial market infrastructure — trading venues, CCPs (DNSC §104)
  5. Health — providers, EU reference labs, medical R&D, pharma (DNSC §105)
  6. Drinking water — suppliers and distributors (DNSC §106)
  7. Waste water — collection, disposal, treatment (DNSC §107)
  8. Digital infrastructure — IXPs, DNS, TLDs, cloud, data centres, CDNs, trust services, public electronic communications (DNSC §108)
  9. B2B ICT service management — MSPs and MSSPs (DNSC §109)
  10. Public administration — central and (where designated) regional (DNSC §110)
  11. Space — ground-based infrastructure operators (DNSC §111)

Annex II — Other critical sectors (7)

  1. Postal & courier services (DNSC §201)
  2. Waste management (DNSC §202)
  3. Manufacture, production and distribution of chemicals (DNSC §203)
  4. Food — production, processing, distribution (DNSC §204)
  5. Manufacturing — medical devices, electronics, machinery, motor vehicles (DNSC §205)
  6. Digital providers — online marketplaces, search engines, social platforms (DNSC §206)
  7. Research (DNSC §207)

Annex I vs Annex II — at a glance

Annex IAnnex II
CriticalityHighOther critical
Default entity typeEssentialImportant
DNSC registration deadline60 days150 days
Maximum fine10M EUR / 2% turnover7M EUR / 1.4% turnover
SupervisionEx-ante & ex-postEx-post

Not sure which sector applies?

Use the free NIS2 classification tool — enter your VAT ID, NACE code and headcount; you get sector, annex, DNSC code and essential/important/excluded status in seconds.

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