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Wiring Regulations (BS 7671)

The IET plays a key role in electrical installation standards and safety, and is known for its independent and trusted voice. It manages the national committee JPEL/64 and publishes the IET Wiring Regulations BS 7671.

The Wiring Regulations

18th edition Wiring Regulations cover

BS 7671 (IET Wiring Regulations) sets the standards for electrical installation in the UK and many other countries. The IET co-publishes the Regulations with the British Standards Institution (BSI) and is the authority on electrical installation.

Following the guidance set out in BS 7671 is likely to ensure that your work meets the requirements of the Electricity at Work Regulations 1989.


18th Edition IET Wiring Regulations - Draft for Public Comment (now closed)

The 18th Edition IET Wiring Regulations (BS 7671:2018) is due to publish in July 2018 and come into effect in January 2019.

The Draft for Public Comment (DPC) for the 18th Edition is now closed. JPEL/64 (the national Wiring Regulations Committee) will be discussing the comments received and finalising the content of BS 7671:2018 over the coming months. More information will be available on this website as it becomes available,


Keep ahead of the changes

You can get everything you need to be up-to-date directly from the IET.

The expertise of the IET is available to help you with any wiring queries.  Ask the people who produce the Regulations directly using the helpline (see right for details), or get guidance from the many industry professionals using the forums (below).

Latest discussion forum posts


Recent activity Replies
Maplin on the brink. [05:22 pm 24/02/18] 13
FAKE DANGEROUS CABLE. [05:21 pm 24/02/18] 7
Does buried 12v cable require mechanical protection? [05:00 pm 24/02/18] 7
CTE 55-0-55V Protection [02:47 pm 24/02/18] 12


Tel: +44 (0)1438 765599

Fax: +44 (0)1438 765526


Further details

The IET Wiring Regulations model forms of certification and reporting, as listed in BS 7671 and the Building Regulations Part P Approved document, are often referred to as Test Certificates or Forms of Reporting.