The 2021 Edition of Special Design Provisions for Wind and Seismic (SDPWS) was approved as an American National Standard on July 22, 2020, with the designation ANSI/AWC SDPWS-2021 (Figure 1). The 2021 SDPWS was developed by the American Wood Council’s (AWC’s) Wood Design Standards Committee (WDSC) and contains provisions for the design of wood members, fasteners, and assemblies to resist wind and seismic forces. Notable revisions are summarized below (also see Table 1 online for a summary of changes by Chapter):
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