# ECLI (European Case Law Identifier)

> The European Case Law Identifier (ECLI) is a uniform identifier for court decisions across EU member states and EU courts, in the form ECLI:country:court:year:number.

URL: https://data.arietalabs.com/glossary/ecli/

ECLI was introduced by Council conclusions of 2011 (OJ C 127, 29.4.2011). The Schrems II judgment is ECLI:EU:C:2020:559.

Not every country assigns ECLIs to every decision, so Arieta Data keeps the ECLI as a nullable field next to the lane id.

Sources:
- [e-Justice portal: ECLI](https://e-justice.europa.eu/topics/legislation-and-case-law/european-case-law-identifier-ecli_en)
- [Council conclusions on ECLI (OJ C 127, 29.4.2011)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:52011XG0429(01))