CO₂ Performance Ladder guides
Twelve practical guides to the certification scheme: the three steps, the audit, the tender advantage and the cost.
CO₂ Performance Ladder levels: why there are now three steps, not five levels
Version 4.0 of the CO₂ Performance Ladder has three steps, not five levels. What each step requires, which step matches your old level, and the deadlines.
From 3.1 to 4.0: what you can reuse and what you have to rewrite
Your last Handbook 3.1 audit can run until 14 January 2027. What carries over to Ladder 4.0, what you rewrite, and which step matches your current level.
The CO₂ Performance Ladder and CSRD: one dataset, two reports
SKAO confirms your CO₂ Performance Ladder 4.0 footprint can be used for ESRS E1. The crosswalk, the conditions, and everything the Ladder does not cover.
The CO₂ Performance Ladder in Belgium: what Flanders has required since 2025
Flanders has applied the CO₂ Performance Ladder to infrastructure tenders above five million euro since 2025. Wallonia starts in 2027 from 600,000 euro.
Value chain analysis on the CO₂ Performance Ladder: from ranking to an approved chain analysis
CO2 Performance Ladder value chain analysis: the ranking, the top two and top six rule, requirements 4.A.1 to 5.D.1, size exemptions and what 4.0 changes.
What auditors reject on the CO₂ Performance Ladder
What auditors reject on the CO₂ Performance Ladder: major and minor deviations, evidence, allocation keys and project files, with the 2026 rules and sources.
CO₂ Performance Ladder for groups: setting organisational boundaries across multiple entities
Organisational boundaries on the CO₂ Performance Ladder for a group: choosing a method, allocation keys for fuel and energy, and the certificate decision.
The CO₂ Performance Ladder and VSME: can you combine them?
The CO₂ Performance Ladder fills VSME datapoint B3 almost directly. A practical analysis of the overlap, the clashing rules and the value chain cap.
What does the CO₂ Performance Ladder cost in 2026?
What does the CO₂ Performance Ladder cost in 2026? SKAO contribution, audit days, day rates and internal hours in one cost table, with a source per figure.
The CO₂ Performance Ladder outside construction: IT, healthcare, logistics and industry
The CO₂ Performance Ladder is not tied to construction. What handbook 4.0 means for IT, healthcare, transport, industry and waste, explained sector by sector.
Tender advantage on the CO₂ Performance Ladder: how gunningvoordeel works and what it is worth
How CO₂ Performance Ladder tender advantage works in 2026: notional discounts per step, the Rijkswaterstaat figures, the legal limits and the penalties.
The CO₂ Performance Ladder explained: a guide for organisations outside the Netherlands
What the CO₂ Performance Ladder is, how Dutch tender advantage works, the three steps in handbook 4.0, and the real status in Ireland, the UK and Europe.
Run the Ladder in Palau
See how the documents an auditor expects are drafted from your own data.