{
  "url": "https://openlegislation.uk/draft-low-emission-zones-emission-standards-exemptions-and-enforcement-scotland-regulations-2021/schedule-2",
  "json_url": "https://openlegislation.uk/draft-low-emission-zones-emission-standards-exemptions-and-enforcement-scotland-regulations-2021/schedule-2.json",
  "legislation": "sdsi/2021/9780111048887",
  "legislation_title": "The Low Emission Zones (Emission Standards, Exemptions and Enforcement) (Scotland) Regulations 2021",
  "legislation_url": "https://openlegislation.uk/draft-low-emission-zones-emission-standards-exemptions-and-enforcement-scotland-regulations-2021",
  "path": "schedule/2",
  "kind": "schedule",
  "number": "2",
  "heading": "Euro Standards for Positive Ignition Engine Vehicles",
  "text": "In this schedule vehicle categories M1 to M3 include ambulances, hearses and motor caravans.\nTable 1\nEuro 4 standards for positive ignition engine vehicles\nVehicle category\nReference mass of vehicle, where relevant (kg)\nMaximum mass of vehicle, where relevant (kg)\nLimit values for CO (g/km)\nLimit values for NOx (g/km)\nLimit values for HC (g/km)\nAppropriate Test\ncategory M1\nnot exceeding 2500\n1\n0.08\n0.1\nType I\ncategory M1\nnot exceeding 1305\nexceeding 2500\n1\n0.08\n0.1\nType I\ncategory M1\nexceeding 1305 and not exceeding 1760\nexceeding 2500\n1.81\n0.1\n0.13\nType I\ncategory M1\nexceeding 1760\nexceeding 2500\n2.27\n0.11\n0.16\nType I\ncategory M2\nnot exceeding 2500\n1\n0.08\n0.1\nType I\ncategory M2\nexceeding 1305 and not exceeding 1760\nexceeding 2500 and not exceeding 3500\n1.81\n0.1\n0.13\nType I\ncategory M2\nexceeding 1760\nexceeding 2500 and not exceeding 3500\n2.27\n0.16\n0.11\nType I\ncategory M2\nnot exceeding 2840\nexceeding 3500\n2.27\n0.16\n0.11\nType I\ncategory N1 sub-class (i)\nnot exceeding 1305\n1\n0.08\n0.1\nType I\ncategory N1 sub-class (ii)\nexceeding 1305 and not exceeding 1760\n1.81\n0.1\n0.13\nType I\ncategory N1 sub-class (iii)\nexceeding 1760\n2.27\n0.11\n0.16\nType I\ncategory N2\nnot exceeding 2840\n2.27\n0.11\n0.16\nType I\nTable 2\nEuro IV standards for positive ignition engine vehicles\nVehicle category\nReference mass of\nvehicle, where relevant (kg)\nLimit values\nfor CO\n(g/kWh)\nLimit values\nfor HC\n(g/kWh)\nLimit values\nfor NOx\n(g/kWh)\nLimit values\nfor PM\n(g/kWh)\nLimit values\nfor NMHC\n(g/kWh)\nLimit values\nfor\nCH4\n(g/kWh)\nLimit values\nfor smoke(m-1)\nAppropriate\nTest\ncategory M3\nexceeding 2610\n1.5\n0.46\n3.5\n0.02\n0.5\nESC and ELR\ncategory M3\nexceeding 2610\n4.0\n3.5\n0.55\n1.1\nETC\ncategory N3\nexceeding 2610\n1.5\n0.46\n3.5\n0.02\n0.5\nESC and ELR\ncategory N3\nexceeding 2610\n4.0\n3.5\n0.55\n1.1\nETC",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/sdsi/2021/9780111048887/schedule/2",
    "retrieved_at": "2026-10-30T15:31:09.902074+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."
}