Part L is split into two distinct primary documents:

These statutory documents give top level detail on Government requirements in England and Wales, a further second tier document, the Non-Domestic Building Services Compliance Guide, gives detailed guidance for services including specific efficiency requirements for space and water heating. For Scottish Building Regulations the Technical Handbook, Section 6, gives detailed guidance.

In order to gain planning consent for new buildings it is essential that an emissions compliance calculation is carried out using SBEM (Simplified Building Energy Model) or DSM (Dynamic Simulation Modelling). To comply the BER (Building Emission Rating) must be equal to or less than the TER (Target Emission Rating), with BER taking into account all regulated carbon emissions including space and water heating.

These statutory documents give top level detail on Government requirements in England and Wales, a further second tier document, the Non-Domestic Building Services Compliance Guide, gives detailed guidance for services including specific efficiency requirements for space and water heating. For Scottish Building Regulations the Technical Handbook, Section 6, gives detailed guidance.

In order to gain planning consent for new buildings it is essential that an emissions compliance calculation is carried out using SBEM (Simplified Building Energy Model) or DSM (Dynamic Simulation Modelling). To comply the BER (Building Emission Rating) must be equal to or less than the TER (Target Emission Rating), with BER taking into account all regulated carbon emissions including space and water heating.

ENGINEERING EFFICIENCY SINCE 1935