Approved Documents
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See the full Approved Document L: Conservation of fuel and power: Approved Document L1A: Conservation of fuel and power in new dwellings (2013 edition with 2016 amendments). Approved Document L1B: Conservation of fuel and power in existing dwellings (2010 edition incorporating 2010, 2011, 2013 and 2016 amendments). Approved Document L2A: Conservation of fuel...Explore the subscription options here to get full access to isurv, including downloads.
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