Supply Chain Intro and Table of Contents Supply Chain August 2026 | Page 6

Digital Product Passports for Circular Supply Chains
CONTENTS
1 Introduction...................................................................................................................... 5
1.1
Why DPP matters now for supply chains.............................................................................. 5
1.2
The interoperability question............................................................................................... 5
1.3
Statement of contribution................................................................................................... 6
2 Battery and Textile DPP Use Cases..................................................................................... 6
2.1
Battery pilot snapshot......................................................................................................... 6
2.2
Textile pilot snapshot.......................................................................................................... 8
2.3
Cross-pilot observations...................................................................................................... 9
3 Implementation and Governance Barriers....................................................................... 10
3.1
Standard fragmentation.................................................................................................... 10
3.2
Semantic divergence across initiatives............................................................................... 11
3.3
Confidentiality versus transparency................................................................................... 12
4 Alignment with UN / CEFACT and EDM Association( OMG) Frameworks............................ 12
4.1
UN / CEFACT Recommendation 49 and the United Nations Transparency Protocol................ 12
4.2
OMG-family frameworks: positioning vis-à-vis the IIC Material Circularity Framework........ 13
4.3
CEN and CENELEC JTC 24 and JTC 25: the European standards baseline............................... 13
4.4
The DPP interoperability stack........................................................................................... 14
5 A Proposed Architectural and Governance Pattern.......................................................... 15
5.1
Five principles................................................................................................................... 15
5.2
Implementation readiness, a comparative matrix............................................................... 16
5.3
Reference architecture...................................................................................................... 17
6 Conclusion and Outlook.................................................................................................. 18 References.......................................................................................................................... 19 Statement of Originality...................................................................................................... 21 Acknowledgements............................................................................................................. 21
FIGURES
Figure 1-1: DPP regulatory rollout: two non-symmetric timelines............................................................... 5 Figure 2-1: Data-completeness ramp over the pilot window....................................................................... 8 Figure 2-2: Supplier onboarding time by tier................................................................................................ 9 Figure 4-1: The DPP interoperability stack, each layer on an open specification....................................... 15 Figure 5.1: Federated Reference Architecture: Cross-border Recognition Bridge..................................... 18
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