Update participation.md

website/docs/about/participation.md

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   ![D4.1Timeline](../files/D4.1Timeline.png) 
 
-* **Contribute to the development of draft deliverables:** During the initial phase of the project, from July 2023 to July 2024, contributors provided their deep business domain knowledge in CRM supply chain sustainability and/or technical skills in decentralized architectures and data modeling. They contributed to the development of draft deliverables, such as the draft Technical Specification and Sustainability Criteria. Contributors had to conform to [UN/CEFACT IPR policy](https://unece.org/DAM/cefact/cf_plenary/plenary12/ECE_TRADE_C_CEFACT_2010_20_Rev2E_UpdatedIPRpolicy.pdf) and [join UN/CEFACT](https://uncefact.unece.org/display/uncefactpublic/UNCEFACT+Expert+Registration) as a registered expert, which requires the approval of their country's head of delegation. Now that the project has advanced to the implementation and test phase, the work of the Contributors is complete. 
+* **Contribute to the development of draft deliverables:** During the initial phase of the project, from July 2023 to July 2024, contributors provided their deep business domain knowledge in CRM supply chain sustainability and/or technical skills in decentralized architectures and data modeling. They contributed to the development of draft deliverables, such as the draft Technical Specification and Sustainability Criteria. Contributors had to conform to [UN/CEFACT IPR policy](https://unece.org/DAM/cefact/cf_plenary/plenary12/ECE_TRADE_C_CEFACT_2010_20_Rev2E_UpdatedIPRpolicy.pdf) and [join UN/CEFACT](https://uncefact.unece.org/display/uncefactpublic/UNCEFACT+Expert+Registration) as a registered expert, which requires the approval of their country's head of delegation. Now that the project has advanced to the implementation and test phase, the work of the Contributors is complete.
 
+* **Get involved with the White Paper:** Help draft the white paper on addressing conflict of laws and facilitating digital product passports (DPPs) in cross-border supply chains to achieve legal coordination and establish traceability in global trade law. Aligned with regional and global initiatives, the White Paper seeks to address conflicts of law and foster the legal harmonization essential for the DPPs implementation across borders. The white paper will also ensure that DPPs comply with international standards, promoting interoperability and supporting a globally consistent approach. Please contact (Jeanne Huang)[[email protected]] to indicate your interest.
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