{
  "url": "https://openlegislation.uk/railways-and-transport-safety-act-2003/section-81",
  "json_url": "https://openlegislation.uk/railways-and-transport-safety-act-2003/section-81.json",
  "legislation": "ukpga/2003/20",
  "legislation_title": "Railways and Transport Safety Act 2003",
  "legislation_url": "https://openlegislation.uk/railways-and-transport-safety-act-2003",
  "path": "section/81",
  "kind": "section",
  "number": "81",
  "heading": "Prescribed limit",
  "text": "(1) The prescribed limit of alcohol for the purposes of this Part is—\n(a) in the case of breath, 25 microgrammes of alcohol in 100 millilitres,\n(b) in the case of blood, 50 milligrammes of alcohol in 100 millilitres, and\n(c) in the case of urine, 67 milligrammes of alcohol in 100 millilitres.\n(2) The Secretary of State may make regulations amending subsection (1).",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Word in s. 81(a) substituted (20.10.2015) by The Merchant Shipping (Alcohol) (Prescribed Limits Amendment) Regulations 2015 (S.I. 2015/1730), regs. 1(2), 2(2)"
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Word in s. 81(b) substituted (20.10.2015) by The Merchant Shipping (Alcohol) (Prescribed Limits Amendment) Regulations 2015 (S.I. 2015/1730), regs. 1(2), 2(3)"
    },
    {
      "type": "F",
      "label": "F3",
      "text": "Word in s. 81(c) substituted (20.10.2015) by The Merchant Shipping (Alcohol) (Prescribed Limits Amendment) Regulations 2015 (S.I. 2015/1730), regs. 1(2), 2(4)"
    },
    {
      "type": "I",
      "label": "I1",
      "text": "S. 81 in force at 30.3.2004 by S.I. 2004/827, art. 3(d)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ukpga/2003/20/section/81",
    "retrieved_at": "2026-10-29T09:18:20.260952+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."
}