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(1) This chapter shall apply to all development applications and actions requiring project permits for any building or structure, excluding single-family and duplex dwellings and their accessory structures, located within a seismic hazard area and assigned to occupancy category I, II, III or IV, and buildings or structures assigned to seismic design categories D, E or F. The occupancy category and seismic design category for a building or structure is determined in accordance with the International Building Code (IBC) and the American Society of Civil Engineers 7 standards.

(2) Seismic design categories are used to determine permissible structural systems, limitations on height and irregularity, those components of the structure that must be designed for seismic resistance, and the types of lateral force analysis that must be performed pursuant to the IBC relating to earthquake loads or the ASCE 7. (Added by Ord. 06-075, Oct. 4, 2006, Eff date Oct. 15, 2006; Amended by Amended Ord. 07-089, Sept. 5, 2007, Eff date Sept. 21, 2007; Amended by Ord. 17-059, Oct. 18, 2017, Eff date Nov. 9, 2017; Amended by Ord. 21-029, July 14, 2021, Eff date July 25, 2021).