{
  "url": "https://openlegislation.uk/control-of-noise-at-work-regulations-northern-ireland-2006/schedule-1/paragraph-1",
  "json_url": "https://openlegislation.uk/control-of-noise-at-work-regulations-northern-ireland-2006/schedule-1/paragraph-1.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/1",
  "kind": "paragraph",
  "number": "1",
  "heading": null,
  "text": "The daily personal noise exposure level LEP,d , which corresponds to LEX, 8 h defined in international standard ISO 1999: 1990 clause 3.6, is expressed in decibels and is ascertained using the formula:\nLEP,d=LAeq,Te+10log10(TeT0) where—\nTe is the duration of the person’s working day, in seconds;\nT 0 is 28,800 seconds (8 hours); and\nLAeq,Te is the equivalent continuous A-weighted sound pressure level, as defined in ISO 1999: 1990 clause 3.5, in decibels, that represents the sound the person is exposed to during the working day.",
  "extent": "N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "I",
      "label": "I1",
      "text": "Sch. 1 para. 1 in operation at 6.4.2006 for specified purposes, see reg. 1"
    },
    {
      "type": "I",
      "label": "I2",
      "text": "Sch. 1 para. 1 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/1",
    "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."
}