# Article 1 — Definitions **Commission Delegated Regulation (EU) 2017/2154 · binding · OJ L 304, 21.11.2017 · dated 22 Sep 2017 [in force]** *In force · Commission Delegated Regulation (EU) 2017/2154, OJ L 304, 21.11.2017 · Checked against EUR-Lex on 26 Oct 2026 · [Official source](https://eur-lex.europa.eu/eli/reg_del/2017/2154/oj/eng)* For the purposes of this Regulation the following definitions apply:\ **(a)** ‘client’ means a client as defined in [Article 2(15)](https://www.headlesslaw.com/emir/articles/2) of Regulation (EU) No 648/2012; **(b)** ‘indirect client’ means a client of a client as defined in point (a); **(c)** ‘indirect clearing arrangements’ means the set of contractual relationships between providers and recipients of indirect clearing services provided by a client, an indirect client or a second indirect client; **(d)** ‘second indirect client’ means a client of an indirect client as defined in point (b); **(e)** ‘third indirect client’ means a client of a second indirect client as defined in point (d).