News Citadel’s Wind and Seismic Map Study October 7, 2016June 11, 2019 Mark Nix Assessment of the Seismic Provisions in the 2015 International Residential Code, the 2014 USGS Seismic Hazard Maps for South Carolina, and the Likely Impact of Elevated Seismic Hazard on the 2018 International Residential Code AND Assessment of the Wind Maps in the 2015 International Residential Code
