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Proba Inset Units

Proba Inset Units

Traceable certificates that can move through your supply chain. Each Inset Unit represents a 1 tCO₂e verified reduction from fertilizer practices you’re connected to.

How does it work?

science-backed methodologies

Science-backed methodolgies

Quantify, monitor, and verify GHG reductions using science-based methodologies for fertilizer-related interventions, developed with IFA and industry partners.

Proba methodologies
independent verification

Independent verification

Approved Verification & Validation Bodies (VVBs) independently review every project, ensuring each Inset Unit is accurate, credible, and aligned with international best practices.

Proba's approved VVBs
blockchain-secured registry

Blockchain-secured registry

Every Inset Unit is recorded in a blockchain-secured registry. Each unit is unique, fully traceable, and backed by transparent data.

Look at our registry

Built for compliance

Claim Scope 3 reductions with confidence. Proba meets the highest global benchmarks for climate integrity:

  • Aligned with SBTi and GHG Protocol (FLAG guidance) for credible Scope 3 accounting

  • Grounded in the Proba Standard, ICROA-endorsed and audited annually against the ICROA Code of Best Practice

  • Developed with the International Fertilizer Association (IFA) and industry leaders, ensuring both scientific rigor and sector relevance

  • Verified by independent third-party auditors before issuance, so every Inset Unit can be used with confidence by food companies, co-ops, traders, and fertilizer producers.

Want to see whether your project qualifies for Inset Units?