How are bookcases rated for seismic zones?

In seismic design categories C–F (California and other earthquake-prone areas), freestanding bookcases over 42 in. tall must be anchored to the wall or floor using seismic brackets. BIFMA G1 provides guidance on furniture in seismic zones. Manufacturers in California often include anti-tip straps and seismic certification as standard. OfficeFurniture2go.com offers seismic-ready bookcases — call 1-800-460-0858.