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Green Public Procurement with the no. 1 decarbonisation tool

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What is the CO₂ Performance Ladder?

The CO2 Performance Ladder is an easy and effective tool that drives decarbonisation and innovation. It helps governments buy green and make significant climate impact by giving sustainable companies a financial advantage. It serves as both a procurement instrument and a CO2 management system.

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  • Carbon reduction tool for all organisations
  • Certified organisations gain award advantage
  • Compliant with European procurement law
  • Certified organisations cut CO2 twice as fast
  • GPP best practice according to IPCC, OECD, WEF

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For organisations

Certification

About certification
certification
For contracting authorities

Procurement

About procurement
Procurement
Who is climbing the Ladder

Who is already climbing the Ladder?

More than 8,000 organisations already have a CO₂ Performance Ladder certificate and more than 300 contracting authorities use the CO₂ Performance Ladder in tenders.

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The Ladder in your country

The CO2 Performance is expanding across Europe! It is being introduced in France, Germany, Ireland, Portugal and the UK, alongside its established presence in the Netherlands and Belgium. Find out more about the implementation in your country. 

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Testimonials




                        

    
    
    
Willemen Infra and the CO₂ Performance Ladder

    
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    Screenshot video making Amsterdam sustainable
    
    
Making Amsterdam sustainable with the CO₂ Performance Ladder

    
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TII’s Experience with the CO₂ Performance Ladder

    
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Find out how international contracting authorities and companies work with the CO2 Performance Ladder and what is needed to successfully implement it.



    
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    About SKAO

        

        
            



About SKAO





The Foundation for Climate Friendly Procurement and Business (in Dutch: SKAO) is responsible for all matters regarding the Ladder: its use, its continued development, managing the certification scheme, expanding to new industries. SKAO helps companies and governments reduce CO2, aiming for a climate-neutral business environment by connecting parties, sharing knowledge, and building a strong network.



    
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    About SKAO

                    
    









            
Blogs

    
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Is it the CO₂, C02, CO² or the CO₂ Performance Ladder?

        

The CO₂ Performance Ladder helps organisations map their CO2 emissions and then reduce C02 emissions. Or wait, was it CO2 after all? ‘Surely they should just know that over there at SKAO!’ we hear you think! ‘Or can’t they see the wood for the CO(222?) absorbing trees?’ April fools! Of…


                            

    
                                    

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European Commission and SKAO launch Community of Practice

        

Today (25 March 2025), SKAO and the European Commission launched the CO₂ Performance Ladder Europe Community of Practice (CoP) on the EC’s Public Buyers Platform. This CoP will help public buyers integrate the CO₂ Performance Ladder into their procurement strategies, setting clear targets and embedding structural CO₂‑reduction measures. The CoP…


                        









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Receive updates, project cases and news about the CO2 Performance Ladder every other month. Subscribe to our newsletter!








                

                        

							
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Franky Van den Berghe and Dirk Christianen from Willemen Infra show us around at their asphalt plant in Belgium. How does Willemen Infra reduce its carbon emissions by using the CO2 Performance Ladder?







    


                

    

    
    

    

                    
            

    

        

To prepare Amsterdam for major climactic changes the CO₂ Performance Ladder is a guiding principle in Amsterdam’s public procurement. Amsterdam and its partners show us how they work with the Ladder. Over the last 14 years, the CO₂ Performance Ladder has developed into a key Green Public Procurement (GPP) tool and the number one CO₂ management system in the Netherlands and Belgium. To support the implementation of the CO₂ Performance Ladder across Europe, our testimonials represent a selection of stories and examples from the history of the Ladder since 2009. They collect the lessons we have learned: what is needed to successfully implement the Ladder, and what benefits does it bring?


    


                

    

    
    

    

                    
            

    

        

Micheál O’Connor, Senior Procurement Executive at Transport Infrastructure Ireland (TII) talks about his experience implementing the Ladder into their procurement process.