BOOK YOUR SEMINARS NOW! The government has now published the new approved documents to support Part L 2013 of the building regulations, controlling the requirements for conservation of fuel and power when erecting new homes and commercial buildings. They can be downloaded by following this link: It should be noted that these changes only affect new build properties. The existing 2010 guidance remains in place for altered and extended buildings, although it is expected that minor amendments to these documents will be published shortly. jhai has arranged a series of seminars for the RIBA and their clients in the lead up to the implementation date of 6th April 2014. If you are interested in attending an RIBA event or arranging your own in house CPD event, please contact the Head of Technical Services who can provide you with full details.