Isometric carbon registry
The public record of every carbon certificate issued against the Isometric Standard. Each certificate represents one tonne of carbon dioxide removed from the atmosphere or prevented from reaching it.
Explore certificatesActivity highlights
Recent certificate issuance and retirements, project and protocol milestones, and public consultations.
Explore projects
- Supplier
- Protocol
- Status
- Certificates
- Accreditations
- Supplier
- Protocol
- Status
- Certificates
- Accreditations
- Supplier
- Protocol
- Status
- Certificates
- Accreditations
How the Registry works
Issuance, delivery, transfer, and retirement are the four stages a certificate can move through on the Registry, representing the full chain of custody.
- 01
Isometric generates a certificate for each verified tonne of carbon removed or reduced.
- 02
A supplier sends certificates to a buyer.
- 03
Transfer(optional)
A buyer sends certificates to another organization.
- 04
An end buyer retires certificates, permanently removing them from circulation.
Independently verified and accredited
Isometric is approved by the market's leading accreditation bodies. Every certificate is independently verified against the Isometric Standard.
The Isometric Standard
A comprehensive scientific framework covering all carbon removal and reduction pathways, developed through public consultation and peer review.
Read the StandardIndependent verification
Every project is validated, and every removal or reduction verified, by an independent, accredited auditor.
Read about validationThird-party accreditation
Isometric is accredited by ICVCM, ICROA, and CORSIA, and holds more CCP-approved protocols for carbon removal than any other certifier.