The ICMA Green Bond Principles (GBP) 2021 are the market-standard voluntary guidelines for issuing a credible green bond. Alignment rests on four core components, and a pre-issuance external review such as a Second Party Opinion will test each one. This checker walks you through the questions behind all four components, computes a weighted alignment score, and flags the gaps you should close before issuance.
Why the framework matters before issuance
Institutional investors, particularly those with ESG mandates, will not purchase a green bond without confidence in the underlying framework. A well-aligned framework reduces the due diligence burden on the buy-side, widens the potential investor base, and typically supports a pricing benefit known in the market as the greenium. A poorly aligned framework, or one that later draws a critical SPO, creates reputational risk and can lead to exclusion from green bond indices.
The four components are sequential in logic: you define what the money will fund (use of proceeds), establish how you will decide on eligible projects (project evaluation), track where the money is at all times (management of proceeds), and tell investors what happened after the fact (reporting). Weakness in any one of them undermines the credibility of the whole bond.
How it works
Each of the four core components is broken into yes, partial, or no questions, scored 1, 0.5, and 0 respectively. Components are weighted by how central they are to alignment:
use of proceeds weight 3 (the defining green criterion)
project evaluation weight 2
management of proceeds weight 2
reporting weight 3 (ongoing investor assurance)
alignment = Σ(answer × weight) / Σ(max × weight) × 100%
Use of proceeds and reporting carry the most weight because they are, respectively, what makes the bond green and what proves it stayed green over time. Any component falling below full alignment is flagged so you can see where an external reviewer is most likely to push back.
Common gap patterns in external reviews
Second Party Opinion providers consistently identify a small number of recurring framework weaknesses. Understanding these in advance can save considerable revision time:
- Vague eligible categories — naming “clean energy” without further definition allows a wide range of projects; reviewers push for specific project types, technologies, and exclusion lists
- No temporary investment policy — frameworks that do not say how unallocated proceeds will be held (for example, in government securities or money-market instruments) are flagged on the management of proceeds component
- Output versus impact reporting — reporting only that proceeds were allocated is insufficient; reviewers expect a commitment to impact metrics such as renewable capacity installed (MW) or greenhouse-gas emissions avoided (tonnes CO2e per year), even if on a best-efforts basis
- No dedicated tracking mechanism — stating that proceeds go into “a general account to be monitored” does not satisfy the management component; a sub-account, a register, or a formal internal attestation process is expected
Tips and notes
A framework can be technically green in its use of proceeds yet score poorly because management of proceeds is informal or reporting commitments are vague — both frequent findings in Second Party Opinions. Treat the four components as equally necessary even though they are weighted: a single zero in any one undermines the whole. Aim to reach full alignment before commissioning your external review, since the reviewer assesses the framework as written, and remember the GBP are voluntary guidelines rather than a binding regulation.