{
  "url": "https://openlegislation.uk/control-of-vibration-at-work-regulations-northern-ireland-2005/schedule-2/part-II",
  "json_url": "https://openlegislation.uk/control-of-vibration-at-work-regulations-northern-ireland-2005/schedule-2/part-II.json",
  "legislation": "nisr/2005/397",
  "legislation_title": "The Control of Vibration at Work Regulations (Northern Ireland) 2005",
  "legislation_url": "https://openlegislation.uk/control-of-vibration-at-work-regulations-northern-ireland-2005",
  "path": "schedule/2/part/II",
  "kind": "part",
  "number": "II",
  "heading": "exposure to vibration averaged over one week",
  "text": "The exposure to vibration averaged over one week (A(8)week) is the total exposure occurring within a period of seven consecutive days, normalised to a reference duration of five 8-hour days (40 hours). It is ascertained using the formula:\nA ( 8 ) week = 1 5 ∑ j = 1 7 A ( 8 ) j 2 where:\nA(8)j is the daily exposure for day j.\nThe exposure to vibration averaged over one week is for use only for the purposes of regulation 6(5).",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/nisr/2005/397/schedule/2/part/II",
    "retrieved_at": "2026-10-29T01:50:53.822249+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."
}