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Building regulation circular WG - 013/2014

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This circular letter informs building control bodies that Welsh Ministers have issued a notice of approval for the calculation methodologies for CO2 emissions.

It also confirms the publication of the final versions of approved documents:

  • L1A - Conservation of fuel and power in new dwellings
  • L1B - Conservation of fuel and power in existing dwellings
  • L2A - Conservation of fuel and power in existing dwellings
  • L2B - Conservation of fuel and power in existing buildings other than dwellings

The new notice of approval takes effect on 2 October 2014 and supersedes the previous approval

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PDF Document (MFS)
Notice of approval (File size: 730KB)