The U.S. Green Building Council (USGBC) continues to drive market transformation related to green building. Most recently, this is evidenced by the increase in the number of manufacturers and trade associations that have undertaken development of product category rules (PCRs) and environmental product declarations (EPDs) in response to a new credit in LEED v4. This article discusses the status of PCRs and EPDs in the concrete industry and how they can be used by structural engineers. …