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The Role of Life Cycle Assessments in Digital Product Passport Implementation for Building a Plastic Circular Economy

Tomohiro Tabata,P. Tsai

Published 2025 in Circular Economy and Sustainability

ABSTRACT

The digital product passport (DPP) system is expected to support circularity, transparency, and traceability in the circular economy. However, environmental impacts posted on the DPP necessitate a mandatory life cycle assessment (LCA). This paper discusses the construction of a plastic circular economy system from the perspectives of DPP and LCA. The status of the DPP in the European Union (EU) is reviewed, and a project on the technical development of the DPP in Ja-pan using plastics as a case study is introduced. We also explain the role of LCAs in the circular economy and discuss the necessity, challenges, and prospects of LCA, considering the quality of plastic waste, in order to withstand resource circulation. Our study reveals the need for LCA in the determination of the environmental impacts of various combinations of methodologies and technologies applied during each process of the circular economy of plastics. This allows manu-facturers and consumers to select plastic products with low environmental impacts using DPP information.

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