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# Article 58 — Testing default procedures

**Commission Delegated Regulation (EU) No 153/2013 · binding · OJ L 52, 23.2.2013 · dated 19 Dec 2012 [in force]**

*In force · Consolidated version of 7 March 2024 · Verified 9 Nov 2026 · [Official source](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02013R0153-20240307)*

1. <a id="art-58-p-1"></a>A CCP shall test and review its default procedures to ensure they are both practical and effective. A CCP shall perform simulation exercises as part of the testing of its default procedures.

2. <a id="art-58-p-2"></a>A CCP shall, following testing of its default procedures, identify any uncertainties and appropriately adapt its procedures to mitigate such uncertainty.

3. <a id="art-58-p-3"></a>A CCP shall, through conducting simulation exercises, verify that all clearing members, where appropriate, clients and other relevant parties including interoperable CCP’s and any related service providers, are duly informed and know the procedures involved in a default scenario.

**SECTION 8 — Validation and testing frequency**