(Revised: 04/01/08)
Seismic Hazard
Exposure Group 1: All buildings except those
listed below.
Seismic Hazard
Exposure Group 2: Buildings which have a
substantial public hazard due to occupancy or use, including buildings
containing any one or more of the indicated uses.
1.) Group A in which more than 300 people congregate in one area.
2.) Group E with an occupant load greater than 250.
3.) Group B used for college or adult education with an occupant
load greater than 500.
4.) Group I-Unrestrained with an occupant load greater than 50, not
having surgery or emergency treatment facilities.
5.) Group I-Restrained.
6.) Power generating stations and other public utility facilities
not included in Seismic Hazard Exposure Group 3.
7.) Any other occupancy with an occupant load greater than 5000.
Seismic Hazard
Exposure Group 3: Essential facilities which
are required for post-earthquake recovery, including buildings containing any
one or more of the indicated uses.
1.) Fire or rescue and police stations.
2.) Group I-Unrestrained having surgery or emergency treatment
facilities.
3.) Earthquake emergency preparedness centers.
4.) Post-earthquake recovery vehicle garages.
5.) Power-generating stations and other utilities required as
emergency back-up facilities.
6.) Primary communication facilities.
7.) Highly toxic materials as defined by 308.2.1 as H4 occupancy
where the quantity of the material exceeds the exempt amounts of Table 308.2D.
See also: