Documents library

Welcome to the Puro Standard documents library

General Rules 4.0

We have launched the General Rules 4.0 to align with global benchmarks. The General Rules outline the procedures for quantifying and verifying CO2 removal activities for issuing CORCs under the Puro Standard.

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Standard Documents

For the full history of Puro General Rules, please visit the following page: History of the General Rules

Standard Requirements

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Approved Methodologies

Would you like to access earlier editions of these methodologies? Please refer to the Puro Standard page. Previously methodologies were saved as Appendices to the Puro Standard General Rules. You can find the Methodology Development Requirements here.

Discontinued Methodologies

To avoid the circulation of out-of-date methodologies, we only provide the latest versions here. If you are interested in having access to an older version of any methodology, feel free to contact us by sending an email to contact@puro.earth.