chapter  13
Approved Document L: Conservation of fuel and power
Pages 33

The 2013 edition of Part L continues to be a tool for government to reduce carbon emissions from buildings, the energy from which accounts for nearly half of all carbon dioxide emissions in the UK. Part L of the Building Regulations is also used to comply with the EU Directive on the Energy Performance of Buildings (EPBD). The EPBD required the government to develop and implement a National Calculation Method (NCM) with a view to being able to set targets for maximum carbon dioxide emissions from build ings and to facilitate the ability to issue energy performance certificates based on the results. To achieve this, the government developed the Stand - ard Assessment Procedure for Energy Rating of Dwellings (SAP) as the NCM for dwellings and the Simplified Building Energy Model (SBEM) for buildings other than dwellings.