Seismic connections in ASD15 and LRFD15 jobs are now designed using two publications; AISC's 3rd Edition Seismic Design Manual and Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications. Controls have been added

SDS2 2021 supports a new joist connection. It is typically used for CJ series joists but can be used for any series of joists.