{
  "url": "https://openlegislation.uk/hydrocarbon-oil-marking-and-designated-markers-amendment-regulations-2023/regulation-5",
  "json_url": "https://openlegislation.uk/hydrocarbon-oil-marking-and-designated-markers-amendment-regulations-2023/regulation-5.json",
  "legislation": "uksi/2023/1187",
  "legislation_title": "The Hydrocarbon Oil (Marking and Designated Markers) (Amendment) Regulations 2023",
  "legislation_url": "https://openlegislation.uk/hydrocarbon-oil-marking-and-designated-markers-amendment-regulations-2023",
  "path": "regulation/5",
  "kind": "regulation",
  "number": "5",
  "heading": "Amendment of the Hydrocarbon Oil (Marking) Regulations 2002",
  "text": "(1) Paragraph (1) of regulation 2 (interpretation) is amended as follows.\n(2) Omit the definition of “Colour Index”.\n(3) Omit the definition of “the common fiscal marker”.\n(4) For the definition of “coumarin” substitute—\n““coumarin” means 1,2-benzopyrone”.\n(5) In the appropriate places insert—\n““the general marker” means N-Ethyl-N-[2-(1-isobutoxyethoxy)ethyl]-4-(phenylazo)aniline;”;\n““solvent orange” means 1-[(2-methylphenyl)azo]-2-naphthol;”.\n(6) For the definition of “solvent red” substitute—\n““solvent red” means a dye that consists of at least 50% 1-(2-methyl-4-(2-methylphenylazo)phenylazo)-2-naphthol, with any remainder consisting of one or more of—\n(a) 1-(4-(phenylazo)phenylazo)-2-naphthol;\n(b) 1-[[3-methyl-4-[(3-methylphenyl)azo]phenyl]azo]-2-naphthol;\n(c) 1-[[2,5-dimethyl-4-[(2-methylphenyl)azo]phenyl]azo]-2-naphthol;\n(d) 1-[[4-[(dimethylphenyl)azo]dimethylphenyl]azo]-2-naphthol.”.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2023/1187/regulation/5",
    "retrieved_at": "2026-10-28T21:38:54.141390+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."
}