{
  "regulation": "Regulation (EU) 2023/956 (CBAM)",
  "definitiveRegimeStart": "2026-01-01",
  "certificatePurchaseSurrenderStart": "2027-02",
  "firstAnnualDeclarationDue": "2027-09-30",
  "registryDeclarationCreationOpens": "2026-Q4",
  "deMinimisTonnes": 50,
  "deMinimisSource": "Regulation (EU) 2025/2083 (Omnibus simplification; 50-tonne mass threshold for iron & steel, aluminium, cement, fertilisers)",
  "sectors": [
    "iron-steel",
    "aluminium",
    "cement",
    "fertilisers",
    "hydrogen",
    "electricity"
  ],
  "certificateDefinition": "1 CBAM certificate = 1 tonne CO2e embedded emissions",
  "certificateRounding": "round-half-up",
  "basis": "default-values",
  "defaultValuesInstrument": "Commission Implementing Regulation (EU) 2025/2621 (definitive-period default values; corrected by (EU) 2026/1740)",
  "benchmarksInstrument": "Commission Implementing Regulation (EU) 2025/2620",
  "datasetVersions": {
    "cnMapping": "cn-2026.3",
    "defaultValues": "dv-2026.3",
    "countryFactors": "cf-2026.1",
    "markups": "mk-2026.1",
    "carbonPrice": "2026-09-11"
  },
  "defaultValueMarkup": {
    "note": "Using default values (not verified actuals) adds a mark-up to the emissions figure: 10% (2026), 20% (2027), 30% (from 2028) for iron & steel, aluminium, cement; 1% for fertilisers.",
    "source": "Commission Implementing Regulation (EU) 2025/2621"
  },
  "disclaimer": "Estimation and audit-trail tooling using published default values. Not legal advice. Not the official EU CBAM registry. The legally binding default values are those set out in Commission Implementing Regulation (EU) 2025/2621; verified actual emissions require an accredited verifier.",
  "sources": {
    "regulation": "https://eur-lex.europa.eu/eli/reg/2023/956/oj",
    "annexIGoods": "https://eur-lex.europa.eu/eli/reg/2023/956/oj (Annex I; CN codes under Regulation (EEC) No 2658/87)",
    "defaultValues": "https://eur-lex.europa.eu/eli/reg_impl/2025/2621/oj",
    "benchmarks": "https://eur-lex.europa.eu/eli/reg_impl/2025/2620/oj",
    "deMinimis": "https://eur-lex.europa.eu/eli/reg/2025/2083/oj",
    "legislationHub": "https://taxation-customs.ec.europa.eu/carbon-border-adjustment-mechanism/cbam-legislation-and-guidance_en",
    "etsPrice": "https://climate.ec.europa.eu/eu-action/eu-emissions-trading-system-eu-ets_en"
  }
}