{
  "url": "https://openlegislation.uk/mareks-disease-restriction-on-vaccination-order-1987/article-4",
  "json_url": "https://openlegislation.uk/mareks-disease-restriction-on-vaccination-order-1987/article-4.json",
  "legislation": "uksi/1987/905",
  "legislation_title": "The Marek’s Disease (Restriction on Vaccination) Order 1987",
  "legislation_url": "https://openlegislation.uk/mareks-disease-restriction-on-vaccination-order-1987",
  "path": "article/4",
  "kind": "article",
  "number": "4",
  "heading": "Restriction on vaccination",
  "text": "No person shall vaccinate any poultry against Marek’s disease with a vaccine consisting of or containing derivatives of the Rispens strain or the SB1 strain except under the authority of a licence issued by the appropriate Minister and in accordance with the conditions subject to which the licence is issued.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1987/905/article/4",
    "retrieved_at": "2026-10-29T16:26:12.392433+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."
}