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This guidance document outlines the framework, professional standards, and methodological requirements for Approved Verifiers and External Review Providers conducting certifications under the Climate Bonds Standard v4.2. It details the specific verification processes for Use of Proceeds (UoP), Asset, Entity, and Sustainability-Linked Debt (SLD) certifications, emphasizing independence, science-based criteria, and the role of the Climate Bonds Standard Secretariat in making final certification decisions.

The Climate Bonds Standard version 4.2 (CBS v4.2) is a voluntary labelling scheme designed to certify debt instruments, assets, and non-financial legal entities to ensure they are consistent with the goals of the Paris Agreement. It provides a science-based framework and sector-specific criteria to mobilise global capital for climate action through four primary certification pathways: Use of Proceeds (UoP), Asset, Entity, and Sustainability-Linked Debt (SLD).

The 'Climate Bonds Guide to Certification' outlines the framework for certifying sustainability-linked debt instruments (SLDs) under the Climate Bonds Standard. The scheme aims to ensure that these instruments are consistent with limiting global temperature rise to 1.5°C by requiring science-based eligibility criteria, transition plans, and governance structures.