18th Edition Amendment 2…What does this mean to you?

Amendment 2 BS7671:2018+A2:2022 is expected to be published in Spring 2022, although no official date has been set for this. With COVID and all the normal delays, most of us come up against we would not be surprised to find a small delay in this being publicised.

Although the IET are generally quite efficient when it comes to releasing updates to the regulations we could easily find ourselves in summer 2022 before we finally get our hands on it.

This amendment will be the first full amendment to the 18th edition IET wiring regulations since it was published in July 2018, coming into effect in January 2019.

Amendment 1 to BS7671 Section 722 EV Charge Points was available through a PDF printout which could be purchased on the IET’s website for £5.00. The PDF was to be inserted into the back pages of BS7671 so it could be referenced when needed.

If you still need a copy of the BS 7671:2018+A1 2020 corrigendum MAY 2020 the following link will take you to the IET’s website where you will find a ‘DO NOT PRINT’ version and the option to purchase a copy of A1 722 Electric Vehicle Charging Installations for £5.00.


There are many changes being proposed to the 18th edition wiring regulations which will include many minor adjustments but also a number of significant changes. Because of these significant changes, it’s doubtful that PDF versions will be available to purchase from the IET’s like when BS7671 Amendment 1 was released, we are expecting a whole new book to be launched.

When the new book is available it is expected to include amendment one – 722 but also the corrigendum from December 2018 which included some final minor adjustments to the standard, these PDFs will become obsolete.

What changes can be expected?

New Part 8 to the standard – Functional Requirements. This includes chapter 82: Prosumers Low-Voltage Electrical Installations. What is a prosumer? This includes both the producer and the consumer of the electricity. The chapter will set out new requirements for Prosumer Electrical installations (PEIs) which will cover the energy efficiency measures, the interface with the smart grid, the management of electricity consumption, the management of renewable sources of electricity, and energy storage.

And chapter 82 provides additional requirements as electrical designers and installers will have a bigger part to play in the design, selection and verification of the most appropriate equipment for all types of LV systems.

Electrical installers will need to have a comprehensive knowledge of the equipment and installation techniques in order to comply with these regulations.

Additional changes are also proposed to the following areas:

  • Chapter 42 – further information on the use of Arc Fault Detection Devices (AFDDs)
  • Chapter 44 – further information on Overvoltages
  • A new Normative Annex (542) on Earthing Arrangements
  • Multiple changes within Section 7: Special Locations, these are expected to minor.
  • Changes to Part 6 regarding IR or insulation resistance testing.
  • Appedix 6 is expected to have major changes to lower the amount of form filling.

This list is not exhaustive and just an overview of some of the draft proposals which may or may not be included in the BS7671 Amendment 2.

Should I still take my 18th edition exam now?

The short answer is YES, electricians and associated trade professionals should be designing and installing to this latest standard and the best way to evidence this is to hold a qualification in the latest version of the IET wiring regulations BS7671. The City & Guilds 2382-18 qualification will demonstrate:

  • You hold a valid copy of the latest version of the IET Wiring Regulations, the final examination is an open book exam.
  • You have passed an industry-recognised qualification demonstrating you can use the book to an appropriate standard.
  • By completing the course and passing the examination candidates are expected to comply with this latest version.

    The changes and adjustment in the regulations that will be covered in Amendment 2 of BS7671 should not invalidate your 18th edition certificate and it should still be valid and recognised by employers and CPS schemes.

    City & Guilds are unsure if the current qualification will even change but may include just a few new questions reflecting the changes in the regulations. We will have to wait and see what happens in 2022 when BS7671 A2 is released.

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