Annex I · Scope and dimension
Sectors of critical importance
Annex I identifies sectors, subsectors and types of entities whose activity may be part of the scope of the RJCS. It is not a generic list of companies: each line contains its own definitions and references.
Official table explained
10 sectors to confirm.
These syntheses help navigate; the type of entity must be confirmed on the full official line.
Energy
Electricity, district heating and cooling, oil, gas and hydrogen.
Transport
Air, rail, water and road transport according to the types defined in the Annex.
Bank sector
Credit institutions covered by the European definition indicated in the official text.
Financial market
Trading venue operators and central counterparties.
Health
Care providers, EU reference laboratories and certain pharmaceutical activities.
Drinking water
Suppliers and distributors, with the specific exclusion provided for in the Annex.
Waste water
Entities of collection, disposal or treatment, observing the main activity.
Digital infrastructure
IXP, DNS, TLD, cloud, data centers, CDN, trust and electronic communications.
ICT management between companies
Managed service providers and managed security service providers.
Space
Land infrastructure operators supporting space services, with the exclusion indicated.
Method
How to use this attachment.
- 01
Identify the actual activity provided
- 02
Locate sector and subsector
- 03
Confirm the legal type of entity
- 04
Cross with Article 6 dimensions and criteria
- 05
Document conclusion and doubts
Warning
Do not conclude by name or dimension only.
- A similar trade name does not prove framework.
- There are entities covered regardless of size.
- The type of entity and exclusions from the official line shall be confirmed.
Frequently Asked Questions
Two important distinctions.
Being in an Annex sector I automatically make the entity essential?
Not in every case. The qualification results from the combined reading of the type of entity, size, criteria and exceptions provided for in Article 6.
Can a secondary activity be relevant?
It may require analysis. The actual activity, the service provided and the exclusions or conditions of the relevant line shall be confirmed.
Primary source
Decree-Law No. 125/2025 of 4 December
Information guide. The presence in a sector or category of size shall not be interpreted in isolation; confirm the types of entity, Articles 3, 6 and 7 and the qualification procedure.