Documents

• Normative

Version 4.0 - Harmonisation Act 2 | Term for drawing up a plan for corrective actions

• Research

Impact of the CO2 Performance Ladder 2025

2025, UUCePP. Evaluating the Impact of the Ladder in Public Procurement.

• Research

Simpler and More Sustainable

How the EU can reform procurement rules to support effective green public procurement.

• Normative

Version 4.0 - Harmonisation Act 1 | business travel and WtT emissions at Step 1

• Resources

Procurement Guide 4.0 (EU)

Explains the use of the CO₂ Performance Ladder as a procurement tool.

• Normative

List of changes in version 4.0 compared to version 3.1

The differences between version 3.1 and 4.0

• Resources

Measure list 2025

List of CO₂ reduction measures companies take.

• Resources

Questionnaire Other Influenceable Emissions (OIE)

Helps organisations assess whether OIE are relevant to them.

• Normative

Audit Days Table Version 4.0

This document is normative as of 14 July 2026.