--- title: "Article 27 — Recommender system transparency" type: regulation legal_status: in_force source: "https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32022R2065" source_retrieved: 2026-09-29 shortTitle: "Article 27 — Recommender system transparency" instrument_type: level1_regulation authority: Commission binding: true binding_character: binding mica_level2: false legal_basis: "Regulation (EU) 2022/2065" instrument: dsa celex: "32022R2065" regulation: DSA regulation-full: "Regulation (EU) 2022/2065" article: 27 status: in_force object_id: eu.dsa.legal_text.article.27 text_version: "Regulation (EU) 2022/2065, OJ L 277, 27.10.2022" source_url: "https://eur-lex.europa.eu/eli/reg/2022/2065/oj/eng" check_status: matched verified: true last_checked: 2026-10-26 --- *In force · Regulation (EU) 2022/2065, OJ L 277, 27.10.2022 · Checked against EUR-Lex on 26 Oct 2026 · [Official source](https://eur-lex.europa.eu/eli/reg/2022/2065/oj/eng)* 1. Providers of online platforms that use recommender systems shall set out in their [terms and conditions](https://www.headlesslaw.com/definitions/dsa/terms-and-conditions), in plain and intelligible language, the main parameters used in their recommender systems, as well as any options for the recipients of the service to modify or influence those main parameters. 2. The main parameters referred to in paragraph 1 shall explain why certain information is suggested to the [recipient of the service](https://www.headlesslaw.com/definitions/dsa/recipient-of-the-service). They shall include, at least: **(a)** the criteria which are most significant in determining the information suggested to the recipient of the service; **(b)** the reasons for the relative importance of those parameters. 3. Where several options are available pursuant to paragraph 1 for recommender systems that determine the relative order of information presented to recipients of the service, providers of online platforms shall also make available a functionality that allows the recipient of the service to select and to modify at any time their preferred option. That functionality shall be directly and easily accessible from the specific section of the [online platform](https://www.headlesslaw.com/definitions/dsa/online-platform)’s [online interface](https://www.headlesslaw.com/definitions/dsa/online-interface) where the information is being prioritised. *** [Chapter III — Due diligence obligations for a transparent and safe online environment](../chapters/iii.md) · [← Article 26](26.md) · [Article 28 →](28.md)