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This circular sets out and explains the approval and publication of the:
new 2013 Approved Documents L1A and L2A
amendments to the 2010 Approved Documents L1B and L2B
new domestic building services compliance guide
new non-domestic building services compliance guide.
The changes in the approved documents and compliance guides comes into effect as of 6 April 2014.
These documents are available to download for free from the Planning Portal website.