Buy Clean California Publishes Embodied Carbon Limits

Analysis of California's groundbreaking Buy Clean California Act embodied carbon limits that took effect July 1, 2021. Explains the GWP caps that set upper limits on embodied carbon intensity for structural steel, concrete reinforcing steel, flat glass, and mineral wool board insulation purchased by the state. Details how limits were calculated as average value collected over previous two years plus tolerance, and requirement for facility-specific Environmental Product Declarations (EPDs) for compliance. Discusses broader implications as California leads North American buy clean jurisdiction development, with similar legislation pending in Washington, Oregon, and potential federal programs.