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PACT is an initiative launched in 2020 by the World Business Council on Sustainable Development (WBCSD) to support companies in their supply chain decarbonization efforts.

PACT is primarily a calculation methodology and a network of solutions designed for peer-to-peer exchange of Product Carbon Footprint (PCF) data. This means any company can use the PACT methodology to calculate a PCF and leverage PACT-conformant solutions to either receive PCF data from a supplier or share data with a customer.

No, PACT is neither a platform nor a software tool and strongly endorses a “no-vendor-lock-in” approach for PCF calculation and exchange. PACT maintains a Technical Specification that any organization globally may implement within their platform and/or tool.

No, PACT does not store any supplier emission data. By following the PACT approach, PCF data is exchanged directly between supplier and customer.

While PACT does not provide direct, tailored support for engaging with suppliers, it does offer implementation programs for member companies. These programs help companies incorporate PACT into their operations, which includes requesting PCF data from suppliers, supporting the calculation of PCFs by suppliers, validating it, and finally and most importantly, utilizing it effectively. These programs also offer valuable opportunities to exchange with other companies undergoing the same journey, and have access to the PACT team, who can answer any questions from your company or its suppliers.

For more information on the PACT Implementation Program 2025, please contact us by submitting a form!

To calculate a Product Carbon Footprint (PCF) using the PACT methodology, your company can start by downloading the PACT PCF how-to guide. This guide offers a simple introduction to PCF calculation in alignment with the PACT methodology, making it an ideal resource for companies calculating PCFs for the first time.

Another valuable resource is the PACT Simplified Data Model, which provides clear details about each data attribute required by the methodology, as outlined in Appendix B (pages 62-66). While not a calculation tool, the model lists all mandatory and optional attributes that must be included as part of PCF exchanges under PACT.

PACT recommends beginning with a small selection of products to familiarize yourself with the process. Once the methodology is understood, your company can consider leveraging IT solutions to scale up PCF calculation and data exchange.

For companies that have previously calculated LCAs (Life Cycle Assessments) or PCFs using other approaches, a checklist is available to help assess alignment with PACT.

PACT does not store or host Product Carbon Footprints (PCFs) from companies. Instead, it provides a framework to harmonize how PCFs are calculated and exchanged. This harmonization improves the accuracy of the data that companies receive while reducing the burden on suppliers, who often face a multitude of differing data requests from their customers.

To use PACT for accessing PCF data, your company can request that suppliers calculate their PCFs following the PACT methodology and exchange the data using PACT-conformant solutions. By aligning with this approach, you ensure consistent, reliable data while streamlining the process for your suppliers.

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To partner with PACT as a software solution provider is to align with the PACT Technical Specifications through our conformance testing process. By passing conformance testing, the rapidly growing number of companies looking to both calculate and exchange Product Carbon Footprint data per the PACT standard will be able to trust that your solution can be used to accomplish their goals of carbon transparency.

PACT has a community-driven process to validate conformance to the PACT standard. To be listed as PACT Conformant, please follow the 5-step PACT Conformance Testing Process Guide You can find all the necessary resources at the end of each step.