E-newsletter January 2023


E-newsletter January 2023

Dear Colleague,

Welcome to the January edition of the CIBSE Certification newsletter.
A Happy New Year to everyone and I hope you have had a good break.

New Commercial EPC EW Conventions Issue 8

We are happy to inform our assessors that there is a new issue of the Non-Domestic EPC Conventions.

The new document comes into force on the 1 February 2023, so we recommend that all our EPC assessors familiarise themselves with the highlighted changes. Please feel free to contact us with any questions at epc@cibsecertification.org.

Changes to the non-domestic EPC methodology in Wales

We would like to inform you that as of 1 February 2023 the approved methodology for producing EPCs for existing non-domestic buildings in Wales will be the National Calculation Methodology (NCM) for buildings other than dwellings in England, 2021 version. 

This is an interim step ahead of the adoption of the NCM for buildings other than dwellings in Wales, 2022 version on 29 March 2023, when the new building regulations for non-domestic buildings in Wales are introduced.

We are expecting approved EPC software packages to implement the changes on time for these changes.

You can download the Commercial EPC Conventions Issue 8 from the CIBSE Certification website.

New version of i-SBEM v6.1.e

Please be advised that iSBEM_v6.1.e has been released on the UK-NCM website

The primary purpose of this new version of iSBEM is to include the implementation of Wales' 2022 NCM, 2022 Notional building, and compliance targets for 2022 Part L V2 in Wales (effective 29th March 2023), and the revised approach to the treatment of electricity generated by renewables in Scotland's 2022 NCM for calculations of EPC Scotland. Please see the “Latest News” page on the UK-NCM website for the release notes. 

We are expecting the other EPC software packages to implement the changes in due course.

iSBEM_v6.1.e maintains England's purposes of analysis (2021 Part L compliance, EPC, and GD) unchanged from the previous version (iSBEM_v6.1.d). The NCM Databases embedded within iSBEM_v6.1.e are also unchanged from those in iSBEM_v6.1.d.


A reminder about keeping your CPD record up to date. We will be conducting our annual CPD audit in February and the easiest way of making sure that this has no impact on you is to ensure that your CPD record for 2022 is up to date and complies with the CIBSE Certification requirements as stated in document CCP 111 - CPD Requirements.

If your record is not updated, you will be selected for audit and may risk suspension from the registers.

Update your CPD record

Part L 2021 Update exam

The deadline to complete the Part L 2021 Update exam is 30 April 2023.  In line with ISO 17024 and the SORs we are required to reassess the competence of our registrants when major changes take place in regulations and methodology.

This is the first major change to Part L since 2013. Part L covers building regulations for both new and existing buildings and the changes affect anyone who provides energy advice. By taking the exam and learning the most up to date building regulations, you are demonstrating your competence on this important subject to your clients and industry.  

Please note that Scotland only registrants are not required to pass this assessment.

There is no requirement to complete training before the exam, however, this may help in ensuring you pass the exam successfully.  You can book a course by any training provider. 

Book your exam now with CIBSE Training

LCC and LCEA Marketing Toolkits

UKAS have updated their logos and we have therefore updated the marketing toolkits for LCCs and LCEA EPC and DEC assessors, the toolkits include a guidance document and the logos.

As an EPC or DEC assessor you can download the new logos and guidance from the Lodgement Portal Downloads area once logged in.

If you are an LCC only for Building Design, Building Operation or Simulation please email epc@cibsecertification.org and we will email you the marketing toolkit.

Please ensure your signatures, letter headed paper, website, etc, are updated accordingly.


CIBSE Certification is restarting its webinar series in 2023. The first in the series will be on the topic of restoring the Palace of Westminster, taking place on 18 January at 14:00 (GMT).

Our speaker is Andrew Piper, Technical Director at the Houses of Parliament Restoration & Renewal Programme.

Andrew will be giving a presentation on the journey to date in restoring the Palace of Westminster and will provide an overview of the challenges and lessons learnt, along with a high level look at the road map ahead.

Andrew studied Integrated Engineering at the University of Reading and Building Services Engineering at London South Bank University. He started his career in engineering consultancy before moving to Parliament in 2013 and for the last seven years he has been working on the Palace of Westminster Restoration and Renewal Programme. 

Register now

Kind regards,

Sebastian Gray
Head of CIBSE Certification