IRC Section R301.2.2.1 Determination of seismic design category

8–1203. IRC Section R301.2.2.1 Determination of seismic design category. Buildings shall be assigned a seismic design category in accordance with the previously published maps by the S.C. Building Codes Council. The local building official may delineate the seismic design category within their jurisdiction, as long as it does not surpass those provided on the Applied Technology Council (ATC) website.