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TM39 Consultation

Revision of Building Energy Metering (TM39)

The current edition of CIBSE TM39 was released in 2009 and is now rather dated. A revision was begun in 2016 but was paused due to other policy developments around energy efficiency in buildings. With the current consultation on Part L for non-domestic buildings we are taking the opportunity to consult on a revised draft of TM39. ​We would welcome comments on this draft.

The draft for consultation can be downloaded here: 
TM39 Draft for Consultation 16 March 2021

To aid us in consolidating all comments, please use this commenting form: 
TM39 Consultation Comment Form

Please submit all comments to

This consultation will close on Friday 30 April 2021.