Stephen Klejst, the Executive Director of Investigations and Recommendations, joined the U.S. Chemical Safety Board (CSB) in February 2018. He is an internationally recognized process safety professional responsible for leading the agency’s chemical incident investigation program and the agency’s recommendations programs including the Drivers of Critical Chemical Safety Change advocacy program.

Mr. Klejst came to the CSB after nearly ten years of experience with the National Transportation Safety Board where he held the agency’s senior career position as the Deputy Managing Director. He previously served as the Director of the Office of Railroad, Pipeline and Hazardous Materials Investigations. During his tenure with the NTSB, Mr. Klejst led the agency’s investigation of several major pipeline and railroad accidents including the explosion of a natural gas transmission line in San Bruno, California, the rupture of a hazardous liquid transmission line in Marshall, Michigan in addition to several significant freight railroad and passenger rail accidents. Prior to his federal career, he held executive level positions in the railroad industry with responsibilities in the areas of safety, accident investigation, regulatory compliance and technical training.

Mr. Klejst received his bachelor’s degree in chemistry from the University of Pennsylvania and a Master of Science degree in Management from the Stevens Institute of Technology. He is a Certified Safety and Security Director and Certified Fire and Explosion Investigator.

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