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Team GreenSutra® Staff answered 2 years ago
The CBAM definitive period is the full-compliance phase of the Carbon Border Adjustment Mechanism that began on 1 January 2026, after the transitional period ended on 31 December 2025.
CBAM was implemented in phases so that impacted businesses and public authorities could adapt to the statutory requirements.
Definitive-regime obligations are walked through on the CBAM Solutions page and the CBAM Compliance Guide.