Approved Document L2A Conservation of fuel and power (New buildings other than dwellings) (2010 edition incorporating further 2010 amendments).pdf
Approved Document L1A Conservation of fuel and power (New dwellings) (2010 edition incorporating further 2010 amendments)
Approved Document L2B Conservation of fuel and power (Existing buildings other than dwellings) (2010 edition incorporating further 2010 and 2011 amendments).pdf
Approved Document L1B Conservation of fuel and power (Existing dwellings) (2010 edition incorporating further 2010 and 2011 amendments)
