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ARTICLE · 20 AUGUST 2025

Arbitration Act 2025 Fully In Force — Reforms To UK Arbitration Now Effective

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The substantive provisions of the Arbitration Act 2025 (the 2025 Act) took effect on 1 August 2025, pursuant to the Arbitration Act 2025 (Commencement) Regulations 2025.

United KingdomLitigation, Mediation & Arbitration
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  • The UK Arbitration Act 2025 took effect on 1 August 2025, bringing into force key updates to the UK arbitration framework, including the following: – Where parties have not chosen a law for the arbitration agreement, the governing law now defaults to the law of the seat. – Tribunals have an express power to summarily dismiss claims or defences that have no real prospect of success. – Arbitrators are subject to a statutory, ongoing duty to disclose circumstances that might give rise to justifiable doubts about their impartiality. – Courts may now grant support orders under the arbitration regime against third parties, as well as parties to the arbitration. – Emergency arbitrators can issue and, where permitted, have their orders enforced, with the same peremptory authority that was previously reserved for fully constituted tribunals.

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