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Product Category Rules (PCR)

Product Category Rules

Information used in an EPD is based on a life-cycle assessment (LCA) methodology following certain product-specific requirements and boundaries, referred to as Product Category Rules (PCRs). These are the rules a product must follow to develop and publish and EPD in order to create a transparent, credible report.


NAPA and a group of industry experts developed a PCR for asphalt mixtures in 2017. Members of the public submitted comments on the PCR during the public review period.


PCR for Asphalt Mixtures

PCR for Asphalt Mixtures Annex 1 - Prescribed Secondary Data Sources
Reviewer and public comments

Life Cycle Assessment of Asphalt Mixtures in Support of an Environmental Product Declaration

PCR approval

EPD tool verification statement


General Program Instructions


Operation of the Emerald Eco-Label Program is governed by the General Program Instructions, which meet the requirements of ISO 14025. The General Program Instructions were revised in 2020.


General Program Instructions