> For the complete documentation index, see [llms.txt](https://www.mica.wtf/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.mica.wtf/nis2/chapter-i-general-provisions-art.-1-6/4.md). # Art. 4 — Sector-specific Union legal acts NIS2 Article 4 — Sector-specific Union legal acts. Directive (EU) 2022/2555, Chapter I — General provisions. 1. Where sector-specific Union legal acts require essential or important entities to adopt [cybersecurity](https://headlesslaw.com/definitions/nis2/cybersecurity/) risk-management measures or to notify significant incidents and where those requirements are at least equivalent in effect to the obligations laid down in this Directive, the relevant provisions of this Directive, including the provisions on supervision and enforcement laid down in Chapter VII, shall not apply to such entities. Where sector-specific Union legal acts do not cover all entities in a specific sector falling within the scope of this Directive, the relevant provisions of this Directive shall continue to apply to the entities not covered by those sector-specific Union legal acts. 2. The requirements referred to in paragraph 1 of this Article shall be considered to be equivalent in effect to the obligations laid down in this Directive where: 1. cybersecurity risk-management measures are at least equivalent in effect to those laid down in [Article 21(1)](/nis2/chapter-iv-cybersecurity-risk-management-measures-and-reporting-obligations-art.-20-25/21.md) and (2); or 2. the sector-specific Union legal act provides for immediate access, where appropriate automatic and direct, to the [incident](https://headlesslaw.com/definitions/nis2/incident/) notifications by the CSIRTs, the competent authorities or the single points of contact under this Directive and where requirements to notify significant incidents are at least equivalent in effect to those laid down in [Article 23(1)](/nis2/chapter-iv-cybersecurity-risk-management-measures-and-reporting-obligations-art.-20-25/23.md) to (6) of this Directive. 3. The Commission shall, by 17 July 2023, provide guidelines clarifying the application of paragraphs 1 and 2. The Commission shall review those guidelines on a regular basis. When preparing those guidelines, the Commission shall take into account any observations of the Cooperation Group and ENISA. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://www.mica.wtf/nis2/chapter-i-general-provisions-art.-1-6/4.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.