Carbon Standard v1.1
The Carbon Standard sets the rules for designing, implementing and monitoring projects and for designing methodologies. Version 1.1 applies from 7 March 2026.
| Reference | CRI-STD-CR-1.1/2025 |
| Version | 1.1 (version 1.0 approved 16 September 2021) |
| Date | Approved 24 September 2025; applies from 7 March 2026, with a one-year transition period |
| Applies to | Project proponents and methodology developers; a reference for VVBs |
| Download | Carbon Standard v1.1 (PDF) |
What it covers
| Section | Topic | Read more |
|---|---|---|
| 4 | Scope, gases, exclusions and sectoral scopes | Excluded project types |
| 7 | GHG accounting principles | Principles |
| 8 | Non-permanence and the Buffer Pool | Reversal risk |
| 9 | Project design: DPD, ownership, scale, boundary, consultation, start date, crediting period, methodology, baseline, additionality, estimates, monitoring, safeguards, SDGs, validation | Designing a project |
| 10 | Clustering | Project clusters |
| 11 | External projects | External projects |
| 12 | Permanent design changes | PDC |
| 13 | Implementation, monitoring and verification | Monitoring and verification |
| 14 | Renewal of crediting period | Renewal |
| 15 | Voluntary deregistration | Withdrawal and deregistration |
| Part B | Design of methodologies and tools | Methodologies |
Key numbers
- Scale: micro up to 10,000, small up to 60,000, large above 60,000 tCO2e a year.
- Crediting: non-AFOLU 10 years fixed or 3 × 7 years; AFOLU 30 years fixed or 3 × 20 years.
- At least four SDGs, including SDG 13.
- Monitored data kept for at least 5 years after the final crediting period or the last issuance.
Version 1.1 replaces version 1.0. Version 1.0 is still available on the Standards page for reference.
