{
  "url": "https://openlegislation.uk/control-of-substances-hazardous-to-health-regulations-2002/schedule-4",
  "json_url": "https://openlegislation.uk/control-of-substances-hazardous-to-health-regulations-2002/schedule-4.json",
  "legislation": "uksi/2002/2677",
  "legislation_title": "The Control of Substances Hazardous to Health Regulations 2002",
  "legislation_url": "https://openlegislation.uk/control-of-substances-hazardous-to-health-regulations-2002",
  "path": "schedule/4",
  "kind": "schedule",
  "number": "4",
  "heading": "FREQUENCY OF THOROUGH EXAMINATION AND TEST OF LOCAL EXHAUST VENTILATION PLANT USED IN CERTAIN PROCESSES",
  "text": "Column 1\nColumn 2\nProcess\nMinimum frequency\nProcesses in which blasting is carried out in or incidental to the cleaning of metal castings, in connection with their manufacture.\n1 month\nProcesses, other than wet processes, in which metal articles (other than of gold, platinum or iridium) are ground, abraded or polished using mechanical power, in any room for more than 12 hours in any week.\n6 months\nProcesses giving off dust or fume in which non-ferrous metal castings are produced.\n6 months\nJute cloth manufacture.\n1 month",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2002/2677/schedule/4",
    "retrieved_at": "2026-10-29T06:42:48.271696+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."
}