# Article 23 — Periodic review of DEA clients (Article 17(5) of Directive 2014/65/EU) **Commission Delegated Regulation (EU) 2017/589 · binding · OJ L 87, 31.3.2017 · dated 19 Jul 2016 [in force]** *In force · Commission Delegated Regulation (EU) 2017/589, OJ L 87, 31.3.2017 · Checked against EUR-Lex on 26 Oct 2026 · [Official source](https://eur-lex.europa.eu/eli/reg_del/2017/589/oj/eng)* 1. A DEA provider shall review its due diligence assessment processes annually. 1. A DEA provider shall carry out an annual risk-based reassessment of the adequacy of its clients' systems and controls, in particular taking into account changes to the scale, nature or complexity of their trading activities or strategies, changes to their staffing, ownership structure, trading or bank account, regulatory status, financial position and whether a DEA client has expressed an intention to sub-delegate the access it receives from the DEA provider. **CHAPTER IV — INVESTMENT FIRMS ACTING AS GENERAL CLEARING MEMBERS**