Prof. Norman Abrahamson is an internationally known expert in seismic hazard and risk analyses with 30 years of experience in the practical application of engineering seismology to develop deterministic and probabilistic seismic criteria for engineering design and evaluations of seismic risk. The focus of his work has been the interface between the earth sciences and earthquake engineering. He has been involved in developing or reviewing design ground motions for hundreds of projects worldwide, including dams, bridges, nuclear power plants, nuclear waste repositories, water and gas pipelines, rail lines, ports, landfills, hospitals, electric substations, and office buildings. Prof. Abrahamson is an adjunct professor at UC Berkeley, and UC Davis. At these two schools, he teaches a graduate course on seismic hazard analyses, development of design time histories, and seismic risk. He has also taught this course as a visiting lecturer at UCLA, UC San Diego, Stanford, U. Texas Austin, and the Rose School (Italy). At UC Berkeley, he is co-chair of the Pacific Earthquake Engineering Research Center (PEER) NGA-west, NGA-east and NGA-Sub projects which are developing new ground motion models for the eastern US, western US, and subduction zones, respectively. These three projects involve a combination of university faculty, USGS scientists, and industry consultants. Prof. Abrahamson is currently a member of the National Seismic Hazard Mapping Program Steering Committee for the USGS. He is also a member of the Caltrans Seismic Advisory Board and the California High Speed Rail Technical Advisory Panel addressing seismic issues. Previously, he has been on seismic advisory panels for the San Francisco Bay Bridge the San Francisco PUC, and the Advisory Council on Earthquake Hazard Reduction (ACEHR) which provides a review of the NEHRP program for NIST. Over the last 10 years, he has been the co-organizer of the COSMOS annual technical meeting that addresses ground motion issues for practicing consulting earthquake engineers and hazard analysts.