---
title: "Case C-34/21: judgment of 30 March 2023"
canonical: "https://dposchool.com/gdpr/case/c-34-21"
source: "https://curia.europa.eu/juris/liste.jsf?num=C-34/21&language=en"
source_note: "Only the judgment as published by the Court of Justice is authoritative."
text_as_of: "2026-10-28"
last_reviewed: "2026-10-29"
language: "en"
publisher: "DPO School"
---

Court of Justice judgment · Case C-34/21

# Hauptpersonalrat der Lehrerinnen und Lehrer beim Hessischen Kultusministerium v Minister des Hessischen Kultusministeriums

[Reviewed by Sergio Maldonado Elvira on 29 October 2026](https://dposchool.com/gdpr/about#review)

- **Case:** C-34/21
- **Court:** Court of Justice
- **Date of judgment:** 30 March 2023
- **ECLI:** ECLI:EU:C:2023:270
- **Instrument:** Regulation (EU) 2016/679 (GDPR)
- **Provisions:** [Article 88(1)](https://dposchool.com/gdpr/article/88#1), [Article 88(2)](https://dposchool.com/gdpr/article/88#2), [Article 6(3)](https://dposchool.com/gdpr/article/6#3)

## Holding (summary, not the official text)

National employment data rules that only repeat general GDPR conditions are not 'more specific rules' under Art. 88 and must be disapplied unless they are a valid legal basis under Art. 6(3).

## Official source

- [Case C-34/21 on CURIA](https://curia.europa.eu/juris/liste.jsf?num=C-34/21&language=en)
- [Judgment on EUR-Lex (CELEX 62021CJ0034)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:62021CJ0034)

Checked against the official source on 28 October 2026.

Only the judgment as published by the Court of Justice is authoritative. This is reference material, not legal advice.

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