(Revised: 04/01/08)
Seismic Hazard
Exposure Group 1: Buildings not assigned to
Seismic Hazard Exposure Group 3 or Group 2.
Seismic Hazard
Exposure Group 2: Buildings that have a substantial
public hazard due to occupancy or use including:
1.) Covered structures whose primary occupancy is public assembly
with a total occupant load greater than 300 persons.
2.) Buildings for schools through secondary or day-care centers with
a total occupant load greater than 250 students.
3.) Buildings for colleges or adult education schools with a total
occupant load greater than 500 students.
4.) Medical facilities with 50 or more resident incapacitated
patients but not having surgery or emergency treatment facilities.
5.) Jails and detention facilities.
6.) All structures with a total occupant load greater than 500
persons.
7.) Power-generating stations and other public utility facilities
not included in Seismic Hazard Exposure Group 3 and required for continued
operation.
Seismic Hazard
Exposure Group 3: Buildings having essential
facilities that are required for post-earthquake recovery including:
1.) Fire or rescue and police stations.
2.) Hospitals or other medical facilities having surgery or
emergency treatment facilities.
3.) Emergency preparedness centers including the equipment therein.
4.) Power-generating stations or other utilities required as
emergency back-up facilities for Seismic Hazard Exposure Group 3 facilities.
5.) Emergency vehicle garages.
6.) Communication centers.
7.) Buildings or structures containing sufficient quantities of
toxic or explosive substances deemed to be dangerous to the public if released.
See also: