{
  "url": "https://openlegislation.uk/control-of-noise-at-work-regulations-northern-ireland-2006/schedule-1/paragraph-2",
  "json_url": "https://openlegislation.uk/control-of-noise-at-work-regulations-northern-ireland-2006/schedule-1/paragraph-2.json",
  "legislation": "nisr/2006/1",
  "legislation_title": "The Control of Noise at Work Regulations (Northern Ireland) 2006",
  "legislation_url": "https://openlegislation.uk/control-of-noise-at-work-regulations-northern-ireland-2006",
  "path": "schedule/1/paragraph/2",
  "kind": "paragraph",
  "number": "2",
  "heading": null,
  "text": "If the work is such that the daily exposure consists of two or more periods with different sound levels, the daily personal noise exposure level (LEP,d ) for the combination of periods is ascertained using the formula:\nLEP,d=10log10[1T0∑i=1i=n(Ti100.1(LAeq,T)i)] where—\nn is the number of individual periods in the working day;\nTi is the duration of period i\n(LAeq,T)i is the equivalent continuous A-weighted sound pressure level that represents the sound the person is exposed to during period i; and\n∑i=li=nTi is equal to Te , the duration of the person’s working day, in seconds.",
  "extent": "N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "I",
      "label": "I1",
      "text": "Sch. 1 para. 2 in operation at 6.4.2006 for specified purposes, see reg. 1"
    },
    {
      "type": "I",
      "label": "I2",
      "text": "Sch. 1 para. 2 in operation at 6.4.2008 in so far as not already in operation, see reg. 1(a)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/nisr/2006/1/schedule/1/paragraph/2",
    "retrieved_at": "2026-10-29T01:48:59.498167+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}