NRMCA Producer member Argos Ready Mix, one of the largest concrete producers in North America has published Environmental Product Declarations (EPDs) for concrete produced at its plants that serve the Dallas-Fort Worth market. Developing and publishing an EPD requires a rigorous process of conducting a life cycle assessment (LCA) of plant operations and product formulation followed by an extensive review by independent LCA professionals using a standard called a Product Category Rule (PCR). Argos chose NSF International to verify its EPDs. It followed the North American Product Category Rule for Concrete developed by the Carbon Leadership Forum and relevant international standards. As is required by the standards, the EPDs are published on NSF International’s Web site.