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Informal review by National Measurement Office on 500 Watt Rule

16 February 2012

Industry stakeholders - including the UK Lighting Board - had expressed concern that The Electricity (Unmetered Supply) Regulations, 2001 were being interpreted in different ways. Following the transfer of statutory responsibility for these Regulations, NMO were asked by stakeholders to review the requirements of the Regulations and develop guidance on them.

NMO met with various stakeholders over the summer of 2011 to establish how the Regulations are being interpreted and identify any areas which are open to misinterpretation. Notes from these meetings, together with other information submitted by stakeholders, were then used to produce the draft guidance included in this consultation.

NMO explained to all stakeholders that the purpose of the consultation was to provide guidance on the Regulations as published. If it became apparent that there was a consensus to amend/change the Regulations then that would need to be considered as a separate project.
NMO welcome your comments on this draft guidance. Following this informal consultation NMO will publish formal guidance notes to accompany the Regulations which will help to ensure the Regulations are being used and interpreted correctly. This guidance shall only apply to new installations and should not be applied retrospectively to installations before the date of publication.

The NMO have asked for responses by Wednesday 7th March 2012 and the NMO have said they aim to issue the final version of the guidance by 31st March 2012.

www.bis.gov.uk/assets/bispartners/nmo/docs/consultations/ums-consultation-document-january-2012.pdf

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