The Building Regulations etc. (amendment) (Wales) Regulations 2022

The Building Regulations for Wales have sent out a circular with new amendments to the Building Regulations and Approved Documents L1, F1 and O for Wales.

The amendments for 2022 cover energy efficiency, ventilations and overheating and will take effect on 23rd November 2022.

The main areas for air testers were 100% testing, CIBSE TM23, and that there were no changes to calibration.

For more information, you can download the PDF circular at


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