Current
Core Supplement
Sets out the national approved calculation methodologies (NCM) for calculating the energy performance of certain buildings in Wales, in accordance with regulations 24 and for the purposes of regulation 25 of the Building regulations 2010 (SI 2010/2214), and regulation 7A of the Energy Performance of Buildings (England and Wales) Regulations 2012. Covers: notice of approval; notes on the approved methodologies; software packages and interfaces; calculating the energy performance of new dwellings; calculating the energy performance on new buildings other than dwellings; and the approval of commercial software calculation tools.
Does not apply to national calculation methodologies in England, Northern Ireland and Scotland, which are subject to separate regulatory requirements.
The Welsh Government is the devolved government for Wales. They publish a number of strategies, policies, consultation papers, circulars, leaflets and posters. Previously known as Welsh Assembly Government.
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
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