is currently an adjunct faculty of the Professional Master of Health Physic Program at the Illinois Institute of Technology (IIT), Chicago. From this program, he retired as the director in 2022. Before joining IIT in 2013, Dr. Chen was a Senior Environmental Systems Engineer and served as the Strategic Area Manager in Risk and Waste Management in the Environmental Science Division at Argonne National Laboratory, Argonne, Illinois. He received his BS in nuclear engineering from National Tsing Hua University in Taiwan and his MS and PhD in nuclear engineering from the University of Illinois at Champaign-Urbana. Dr. Chen’s professional interests include radiation protection, human and environmental health risk, and nuclear accident analysis, with expertise in environmental cleanup, radioactive material disposition management, and nuclear waste transportation. Dr. Chen was an NCRP member from 1999 to 2017, became a Distinguished Emeritus member in 2017, and served on its Board (2004 to 2011). In addition, he served as NCRP Scientific Vice President on Environmental Radiation and Waste Issues (2004 to 2017). Dr. Chen has served on the U.S. Environmental Protection Agency’s Science Advisory Board/Radiation Advisory Committee from 2009 to 2015. He is a long-standing member of the Health Physics Society and the American Nuclear Society. He was elected to Fellow by the Health Physics Society in 2013 and is a Certified Health Physicist by the American Board of Health Physics. While at Argonne, Dr. Chen developed an integrated risk assessment program that addresses the broad-based issues to support federal risk-based policies. Dr. Chen had served in numerous capacities at NCRP, including chairing Scientific Committee (SC) 87-4. The committee’s effort led to the publication of Report No. 141, Managing Potentially Radioactive Scrap Metal. He also chaired Scientific Committee SC 5-1, which led to the publication of Report No. 175, Decision Making for Late-Phase Recovery from Major Nuclear or Radiological Incidents. In addition, he served as Chair of NCRP 2005 Annual Meeting Program Committee, Managing the Disposition of Low-Activity Radioactive Materials, and as Co-Chair of NCRP 2013 Annual Meeting Program Committee, Radiation Dose and the Impacts on Exposed Populations.