The U.S. Domestic Scan Program has released a report that documents factors and conditions which lead to a strong safety culture within a transportation organization. The report also provides examples of specific actions taken by transportation organizations that supported successful implementation of their safety programs. The U.S. Domestic Scan Program was developed by the American Association of State Highway and Transportation Officials and is administered by TRB’s National Cooperative Highway Research Program. The opinions and conclusions expressed or implied in U.S. Domestic Scan Program documents are those of the scan team and are not necessarily those of TRB, the National Academies of Sciences, Engineering, and Medicine, or the program sponsors.