# Article 3 — Stress-testing of the operational conditions of the active account **Commission Delegated Regulation (EU) 2026/305 · binding · OJ L, 2026/305, 6.2.2026 · dated 29 Oct 2025 [in force]** *In force · Consolidated version of 6 February 2026 · Checked against EUR-Lex on 26 Oct 2026 · [Official source](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02026R0305-20260206)* The stress testing referred to in [Article 7a(4)](../../articles/7a.md), fourth subparagraph of Regulation (EU) No 648/2012 shall consist of technical and functional tests that verify the operational capacity and the functioning of the IT connectivity with the CCP, directly or indirectly, with the clearing member or client providing client clearing services in accordance with Article 1. Those technical and functional tests shall demonstrate to the competent authority that the account of the counterparty can withstand a substantial increase in clearing activity as referred to in Article 2(1), points (d) and (e). The tests shall take place annually. **CHAPTER II — REPRESENTATIVENESS OBLIGATION**