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Start the year with the 18th Edition

On 1 January 2019, the 18th Edition of the IET Wiring Regulations (BS 7671) came into full effect, applying to all new and rewired installations designed after that date.

The publication underwent its first full round of changes since 2008, ranging from simple rewordings to entirely new additions, with ECA playing a central role. It was published in July 2018, allowing the industry six months to get to grips with the changes.

To help designers and installers to home in on the most important changes in the 18th Edition, ECA launched #Project18, a series of half-day events and multimedia resources designed to make the transition for members to the 18th Edition as easy as possible.

Below is a handy compilation of the most popular articles, videos, guidance notes and podcasts from #Project18 to help you kick-start the year...

  • Your starter for 10: the 10 biggest changes to the Wiring Regulations

In the Summer 2018 issue of ECAtoday magazine, I looked at 10 significant changes for contractors to be aware of.

  • Q&A: (almost) everything you wanted to know about the 18th Edition

Gary Parker, ECA Senior Technical Engineer, answers some of the most frequently asked questions about the 18th Edition in ECAtoday magazine.


  • The 18th Edition and fire safety

Heralded as one of the biggest overhauls of fire safety Regulations in years, the 18th Edition presents some important updates, summed up by Gary Parker for Construction Manager magazine.


  • The 18th Edition and EV charging

The electric vehicle revolution is here, and new changes to the Wiring Regulations will help industry drive this agenda forward. Learn more about the impact of the 18th Edition on EV charging in this article by Gary Parker published in Professional Electrician & Installer magazine.


  • The 18th Edition and energy efficiency

Initially drafted as Part 8 and later changed to an Informative Appendix, the Wiring Regulations regarding the energy efficiency of new designs and installations have proven to be somewhat controversial. I examined the new appendix and its key features in this article for Modern Building Services magazine.

  • #Project18 Roadshow videos

A major component of #Project18 was a series of half-day member-only Roadshow events held at over a dozen venues around the country, reaching thousands. Presented by the inimitable Gary Parker and joined by partners from across the industry, the Roadshow shared key information from the 18th Edition in bitesize chunks. Watch our Roadshow recap and the entire presentation in six parts below.

  • The Wiring Regulations Podcast

Listen to a summary of the key changes and the rationale behind them, from ECA’s Gary Parker and Richard Giddings, ECA’s Technical Manager, in this 18th Edition special episode of the ECA Podcast.


  • ...and finally, an important Corrigendum:

In late December 2018, a Corrigendum to BS 7671:2018 has been issued by IET and BSI highlighting eleven corrections. This can be read here: BS 7671 December 2018 Corrigendum.