# Article 4 — Format of the data requests **Commission Delegated Regulation (EU) 2017/577 · binding · OJ L 87, 31.3.2017 · dated 13 Jun 2016 [in force]** *In force · Consolidated version of 21 June 2026 · Checked against EUR-Lex on 26 Oct 2026 · [Official source](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02017R0577-20260621)* 1. Trading venues, APAs, and CTPs shall submit the data referred to in Article 2(1) in a common XML format. 2. Trading venues, APAs, and CTPs shall submit the data referred to in Article 2, (2) and (3), in the format specified in the request.