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What ISO 14064-3 verification software actually asks a verifier to check, and what that means for verification-ready emissions data architecture from the first place.
ISO 14064 is a three-part standard for greenhouse gas accounting. Part 1 covers organisation-level quantification and reporting; Part 2 covers project-level quantification; Part 3 specifies requirements for validating and verifying GHG assertions made under Parts 1 or 2. A third-party verifier uses Part 3 to assess whether a reported GHG statement is materially accurate and free of bias.
Verification under ISO 14064-3 is evidence-based: a verifier samples and traces reported figures back to underlying source data, checks the calculation methodology, and assesses the control environment around data collection — not merely whether the final number looks reasonable.
Emissions data assembled in spreadsheets, manually transcribed from multiple source systems, cannot usually withstand a sampling-based audit — the verifier finds gaps in traceability rather than errors in arithmetic, and the assurance engagement stalls there.
Verification-ready emissions data architecture treats every emissions figure as a first-class record with a source reference, a calculation method and a timestamp from the outset — not a cell in a workbook someone can silently overwrite.
Source-to-report traceability on every material figure, by design — the foundation of ISO 14064-3 verification software
A GHG assertion audit trail — immutable calculation records where a figure's methodology and inputs are preserved even after the underlying source data changes
An audit package a verifier can work through without a week of back-and-forth requesting evidence
It isn't a law in itself, but it's the standard most regulatory and voluntary carbon regimes point to when they require third-party verification or assurance of a GHG statement — CBAM, CCTS and voluntary carbon market methodologies all lean on the same verification logic.
This page summarises a regulatory regime for orientation purposes and reflects our understanding as of the review date above. Regulatory detail changes; confirm current thresholds, deadlines and obligated-entity status against the official regulator or notification before acting on it.
This is the regime. See how we build against it.
Validation is a forward-looking assessment of a proposed GHG project's design and assumptions before it runs. Verification is a retrospective assessment of a GHG assertion — an emissions inventory or a project's reported reductions — after the fact, checking it against the reporting criteria.
That's the objective. Building traceability, immutable calculation records and control documentation into the system from the start means a verification engagement becomes a review of existing evidence, not a scramble to reconstruct it.