The Minister for Housing and Local Government (Grant Shapps)

We also said we would look again at the right level for carbon reductions on the site of the home itself—“carbon compliance”. The Zero Carbon Hub has led a large-scale review of evidence, working with industry, green groups and other experts. The Government have considered with care the findings from this work, and we intend to use the Hub’s recommendations on where to set the maximum levels of on site carbon dioxide emissions as a starting point for consultation as part of future revisions to the building regulations.

[Source]