Can the consultant who prepared our carbon inventory also verify it?

No. A verifier must be independent of the work they check, so the firm or person who prepared or advised on your inventory should not verify it. ISO 14064-3 and accreditation rules require impartiality. Use a separate accredited body, and expect them to ask about any past consulting.

Conflicts to avoid

• The same firm built the inventory or chose the factors.
• The verifier sells you software or credits linked to the result.
• Fees that depend on the outcome.

What is allowed

A verifier can explain requirements and point out findings. Designing your system or writing your figures crosses the line.

Ask before you sign

Request the verifier's accreditation and a written statement of independence.

What Senseible does here

Senseible keeps every figure linked to its source invoice or bill with a fingerprint, so a verifier can trace a total back to the documents it came from.

• Who can verify in India
• CCTS accredited verification agencies
• Changing verifiers

Sources: ISO 14064-1, 14064-3 and 14067 (iso.org), GHG Protocol Corporate Standard, GHG Protocol standards

Last reviewed 2026-10-22.