# Article 12 — Trading venue transaction identification code **Commission Delegated Regulation (EU) 2017/580 · binding · OJ L 87, 31.3.2017 · dated 24 Jun 2016 [in force]** *In force · Commission Delegated Regulation (EU) 2017/580, OJ L 87, 31.3.2017 · Checked against EUR-Lex on 26 Oct 2026 · [Official source](https://eur-lex.europa.eu/eli/reg_del/2017/580/oj/eng)* Operators of trading venues shall maintain an individual transaction identification code for each transaction resulting from the full or partial execution of an order as specified in field 48 of Table 2 of the Annex.