- Resources
2023 CO₂ Performance Ladder slidedeck WCEF23
The CO₂ Performance Ladder for low carbon procurement.
- Research
Advancing Green Public Procurement in South Africa
IISD Report (2025).
- Research
Analysing stimulation Circular Economy
2018 Utrecht University.
- Normative
Audit day table 3.1
Table for CO₂ Performance Ladder assessments.
- Normative
Audit Days Table Version 4.0
This document is normative as of 17 February 2025.
- Research
Best practices for sustainable procurement
OECD (2015)
- Resources
CO₂ Performance Ladder Essentials 2023
An overview of the Ladder and our international work.
- Resources
CO₂ Performance Ladder for (local) governments
Making the (government) organisation more sustainable.
- Research
CO₂ Performance Ladder in Belgium
Results of the pilot phase. 2024.