Part L & B are the approved documents from the office of the deputy priminister and form part of the building regulations 2000

 

part L1a - Conservation of fuel & power - new dwellings

 

part L1b - Conservation of fuel & power - existing dwellings

part L2a - Conservation of fuel & power - new buildings other than dwellings

 

part L2b - Conservation of fuel & power - existing buildings other than dwellings

part B vol 1 - Fire safety for dwellings

 

part B vol 2 - Fire safety for non-dwellings