<P> Pre-completion sound tests have been required since July 2003 to ensure compliance with Approved Document E, unless the Robust Details approach is adopted, see Part L below . Testing is to be undertaken by a UKAS registered test organisation or European equivalent (e.g. ANC). A list of preferred UKAS accredited companies can be found at UKAS Organisation Search . A list of preferred ANC accredited companies can be found at www.association-of-noise-consultants.co.uk . </P> <P> Care should be taken to ensure site conditions are appropriate before testing commences to ensure tests can be completed and that the best results are achieved . </P> <P> Standards for ventilation and air quality requirements for all buildings are included in this part of the building regulations </P> <P> Due to the increasing complexity of the Regulations, ventilation strategies and system design must be considered at the earliest stages of building design . </P>

When did building regulations come into force uk