Taken from the CRS (Congressional Research Service) Insight, the following provides an introduction to the subject matter. "The Federal Flood Risk Management Standard (FFRMS) is the principal mechanism for accomplishing the flood risk management policies established by President Obama in Executive Order (E.O.) 13690. E.O. 13690 aims to improve the resilience of communities and federal assets against the impacts of flooding. The FFRMS is a flood resilience standard that is required for 'federally funded projects.' The October 2015 FFRMS defines federally funded projects as 'actions where Federal funds are used for new construction, substantial improvement, or to address substantial damage to a structure or facility.' A structure is defined as a walled or roofed building; a facility is a man-made or man-placed item other than a structure."
CRS Insight, IN10434
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html