# The Control of Noise at Work Regulations 2005, Paragraph


The weekly personal noise exposure, LEP,w, which corresponds to
defined in international standard ISO 1999: 1990 clause 3.6 (note 2) for a nominal week of five working days, is expressed in decibels and is ascertained using the formula:

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Source: https://www.legislation.gov.uk/uksi/2005/1643/schedule/1/part/2/paragraph/wrapper1n1 (the official version)
Page: https://openlegislation.uk/control-of-noise-at-work-regulations-2005/schedule-1/part-2/paragraph-wrapper1n1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.