How is the BiodivPass score calculated?
BiodivPass turns your 10 answers into three indices, then into a recommended proof level. Here is the method, no black box.
Three complementary axes
R — Regulatory exposure
Measures regulatory and contractual pressure on the project: profile, imposed requirement (local authority, investor, tender), how the result is used (CSRD, communication) and site sensitivity.
P — Site potential
Estimates the site's potential value: nature of the land, level of artificialisation, available open ground and the environmental sensitivity of the area.
T — Project maturity
Places the project in time: stage (feasibility to operation) and decisions already locked in. The further along the project, the more the window for action closes.
From scale to score
- 1Each answer contributes to one or more axes via a point scale (0 to 100).
- 2For each axis, the score is normalised to 100: points earned ÷ maximum possible points × 100.
- 3A combined score is obtained by weighting the three axes:
Regulatory risk weighs the most, as it drives how urgent proof is.
Four proof levels
The combined score determines the recommended level:
At this stage, your regulatory exposure remains under control. An indicative BPS score is enough to document your approach and anticipate requests from your stakeholders.
Your operation combines moderate exposure with a site that carries stakes. An IRICE-signed BPS report lets you build a file that stands up to your financiers and authorities.
High exposure and/or a closing decision window: producing solid proof becomes a priority. A full BPS — or an Effinature certification — secures your claims.
The combination of factors calls for action without delay. Bring in a qualified Biodiversity Partner this week to frame the project and contain the risks.
Scope and limits
The result is indicative and self-declared (based on 10 answers). It replaces neither a field ecological study nor an IRICE-signed BPS (Biodiversity Performance Score) — the only deliverable that stands up to your financiers, local authorities and auditors.