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Overview.

BS 5266-1:2025 is much more comprehensive, performance-based, and aligned with modern building usage and European standards, with expanded scope, stricter verification, clearer design rules, and stronger documentation expectations compared to the 2016 version.

There are several emergency lighting standards in place in the UK, that are important to follow.  A summary of the hierarchy of standards covering the different aspects of emergency lighting systems 
is given in Annex A of the latest BS5266-1 regulations.

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So what are the requirements for emergency lighting in the UK? 

The most important standard to follow and to comply with is the BS5266-1. The standard also covers the detailed emergency lighting procedure, cross-referencing BS EN 1838 and BS EN 50172. It also details the certification process and log book procedures. 

Published by BSI, BS 5266-1:2025 replaces the 2016 version. It is intended to be used in conjunction with BS EN 1838 and BS EN 50172.
There have been several key updates in the standard, changing the approach to emergency lighting. 

More detail.

who is responsible for emergency lighting

Who is Responsible?

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types of emergency lighting

Types of Emergency Lighting

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BS 5266-1:2025 Annex B

LED Technology - Annex B

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Emergency Lighting Design Procedure

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Prepared by the 299 Lighting technical team. Standards and regulations are revised from time to time, so contact us and we will confirm the current requirements for your project.

Need help applying this to a project?

Send us your drawings or schedule and we will reply within one working day. Layouts and calculations are included when we supply the fittings.

  • Architects & interior designers: samples, finishes and made-to-measure options
  • Contractors: fast quotes, lead times and delivery to programme
  • M&E consultants: photometrics, BIM, LDT files and calculations
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