Climate Bonds Standard & Certification Scheme Guidance to Verifiers and External Reviewers

The guidance outlines the operational requirements for Approved Verifiers to ensure the integrity of the Climate Bonds Certification mark. It details the verification processes for four certification types: Use of Proceeds (UoP), Assets, Non-Financial Entities, and Sustainability-Linked Debt (SLD). The document specifies a multi-stage methodology—comprising engagement, planning, risk assessment, testing, evidence gathering, and reporting—and mandates adherence to professional standards such as ISAE3000 or AA1000. It establishes strict independence and conflict-of-interest rules, requires professional indemnity insurance, and defines the oversight mechanisms used by the Climate Bonds Standard Secretariat to monitor verifier performance.

• The Certification Scheme offers four distinct certification types: Use of Proceeds (UoP) for debt instruments allocated to specific projects; Asset certification for the environmental credentials of projects or portfolios; Entity certification for non-financial legal entities with aligned climate mitigation targets; and Sustainability-Linked Debt (SLD) for instruments with financial characteristics tied to predefined KPIs and transition plans.
• Verification for Entity and SLD certifications is more holistic than UoP or Asset verifications, as it requires a forward-looking assessment of a company's business model, governance, and the credibility of its transition plans to reach net zero.
• Approved Verifiers must follow a structured seven-stage methodology: Engagement, Planning, Risk Assessment, Testing and Fieldwork, Evidence Gathering and Documentation, Handling Exceptions and Misstatements, and Reporting.
• Verification reports must provide either an unqualified assurance opinion or an external review opinion. Assurance opinions must follow ISAE3000 or an equivalent standard like AA1000, offering either 'reasonable assurance' (positive expression) or 'limited assurance' (negative expression).
• To maintain Approved Verifier status, firms must meet specific staffing minimums, employing at least 4 competent verifiers for UoP certifications and 10 for Entity/SLB certifications.
• Approved Verifiers are required to maintain professional indemnity or professional liability insurance that covers the jurisdiction where the debt instrument is issued or where the asset or entity is based.
• The Climate Bonds Standard Secretariat performs ongoing oversight of verifiers, which includes reviewing all submitted verification reports and monitoring the first few engagements of newly approved verifiers through the review of risk assessments and draft findings.
• For Use of Proceeds certifications, the process is split into Pre-Issuance (assessing systems and processes) and Post-Issuance (verifying the actual allocation of proceeds to eligible projects).

APA

Climate Bonds Initiative (2024). Climate Bonds Standard & Certification Scheme Guidance to Verifiers and External Reviewers. https://www.climatebonds.net/files/content-images/Guidance-for-Verifiers-and-External-Reviewers-September2024.pdf

Chicago

Climate Bonds Initiative. Climate Bonds Standard & Certification Scheme Guidance to Verifiers and External Reviewers. 2024. https://www.climatebonds.net/files/content-images/Guidance-for-Verifiers-and-External-Reviewers-September2024.pdf.

Wikipedia

{{cite report |author=Climate Bonds Initiative |title=Climate Bonds Standard & Certification Scheme Guidance to Verifiers and External Reviewers |date=October 2024 |url=https://www.climatebonds.net/files/content-images/Guidance-for-Verifiers-and-External-Reviewers-September2024.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{climatebondsinitiative2024climate, author = {{Climate Bonds Initiative}}, title = {{Climate Bonds Standard \& Certification Scheme Guidance to Verifiers and External Reviewers}}, institution = {Climate Bonds Initiative}, year = {2024}, month = oct, url = {https://www.climatebonds.net/files/content-images/Guidance-for-Verifiers-and-External-Reviewers-September2024.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }