This file may not be suitable for users of assistive technology.
Request an accessible format.
If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email firstname.lastname@example.org.
Please tell us what format you need. It will help us if you say what assistive technology you use.
This notice of approval sets out the approved national calculation methodologies for calculating the energy performance of buildings in England and for certain buildings in Wales. It comes into effect on the 31 October 2018 and replaces the notice of approval published in June 2014.
In respect of air conditioning inspection reports the software is approved as fit for commercial use in its current state and form to generate an inspection report.
Earlier versions of the methodologies may continue to be used in respect of building work started on site before 31 October 2018; or where a notification of building work has been given before 31 October 2018 and the building work is commenced on site before 31 October 2019.
The Building Regulations 2010: notice of approval sets out the national approved calculation methodologies for CO2 emissions, fabric energy efficiency and energy performance certificates for new buildings in England, and for certain buildings in Wales.