{
  "url": "https://openlegislation.uk/draft-low-emission-zones-emission-standards-exemptions-and-enforcement-scotland-regulations-2021/schedule-1",
  "json_url": "https://openlegislation.uk/draft-low-emission-zones-emission-standards-exemptions-and-enforcement-scotland-regulations-2021/schedule-1.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/1",
  "kind": "schedule",
  "number": "1",
  "heading": "Euro Standards for Compression Ignition Engine Vehicles",
  "text": "In this schedule vehicle categories M1 to M3 include ambulances, hearses and motor caravans.\nTable 1\nEuro 6 standards for compression ignition engine vehicles\nVehicle category\nReference mass of vehicle, where relevant (kg)\nLimit values for CO\n(mg/km)\nLimit values for NOx\n(mg/km)\nLimit values for THC+\nNOx (mg/km)\nLimit values for PM\nLimit values for PN (#/km)\nAppropriate Test\ncategory M1\nnot exceeding 2610\n500\n80\n170\n4.5\n6 x 10\nType I\ncategory M2\nnot exceeding 2610\n500\n80\n170\n4.5\n6 x 10\nType I\ncategory N1 sub-class (i)\nnot exceeding 1305\n500\n80\n170\n4.5\n6 x 10\nType I\ncategory N1 sub-class (ii)\nexceeding 1305 and not exceeding 1760\n630\n105\n195\n4.5\n6 x 10\nType I\ncategory N1 sub-class (iii)\nexceeding 1760\n740\n125\n215\n4.5\n6 x 10\nType I\ncategory N2\nnot exceeding 2610\n740\n125\n215\n4.5\n6 x 10\nType I\nTable 2\nEuro VI standards for compression ignition engine vehicles\nVehicle category\nReference mass of vehicle, where relevant (kg)\nLimit values for CO\n(mg/kWh)\nLimit values for NOx\n(mg/kWh)\nLimit values for NH3\n(ppm)\nLimit values for PM\n(mg/kWh)\nParticleMass Number(#kWh)\nAppropriate Test\ncategory M1\nexceeding 2610\n1500\n400\n10\n10\n6 x 10\nWHSC\ncategory M1\nexceeding 2610\n4000\n460\n10\n10\n6 x 10\nWHTC\ncategory M2\nexceeding 2610\n1500\n400\n10\n10\n6 x 10\nWHSC\ncategory M2\nexceeding 2610\n4000\n460\n10\n10\n6 x 10\nWHTC\ncategory M3\nexceeding 2610\n1500\n400\n10\n10\n6 x 10\nWHSC\ncategory M3\nexceeding 2610\n4000\n460\n10\n10\n6 x 10\nWHTC\ncategory N2\nexceeding 2610\n1500\n400\n10\n10\n6 x 10\nWHSC\ncategory N2\nexceeding 2610\n4000\n460\n10\n10\n6 x 10\nWHTC\ncategory N3\nexceeding 2610\n1500\n400\n10\n10\n6 x 10\nWHSC\ncategory N3\nexceeding 2610\n4000\n460\n10\n10\n6 x 10\nWHTC",
  "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/1",
    "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."
}