BS 7671 Amendment 4 (2026): NICEIC Releases Guidance as Industry Prepares for Changes
Stay up to date with the latest changes to the UK Wiring Regulations as NICEIC releases guidance following the publication of BS 7671:2018+A4:2026. This article breaks down what Amendment 4 means for electricians, key deadlines, and how to remain compliant ahead of October 2026. Learn how updated training and industry resources can help you apply the new regulations with confidence.
BS 7671 Update Confirmed: Amendment 4 (The Orange Book) Available from April 2026
The IET has confirmed that Amendment 4:2026 to BS 7671 (the 18th Edition Wiring Regulations) will be published on 15 April 2026. Known as the Orange Book, the update introduces key changes reflecting modern electrical installations, including new requirements for battery energy storage systems, Power over Ethernet (PoE), functional earthing for ICT systems, and revised rules for medical locations. The amendment can be implemented immediately from publication, with the current standard remaining valid until October 2026.