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Chapter 9 Fire protection and Life Safety Systems is adopted in its entirety with <br />the following amendments: <br />(a) Section 903.2 Where required is hereby amended as follows: <br />903.2 Where required. Approved automatic sprinkler systems in buildings <br />and structures shall be provided when one of the following conditions <br />exists: <br />New buildings: Notwithstanding any applicable provisions of <br />Sections 903.2.1 through 903.2.19, an automatic fire - <br />extinguishing system shall also be installed in all <br />occupancies when the total building area exceeds 5,000 <br />square feet (465 m2) as defined in Section 202, regardless of <br />fire areas or allowable area, or is more than two stories in <br />height. <br />Exception: Subject to approval by the Fire Code Official, open parking <br />garages in accordance with Section 406.5 of the California Building Code <br />that are smaller than the area specified in section 903.2.10 (3) or 903.2.10.1 <br />of the California Fire Code. <br />2. Existing Buildings: Notwithstanding any applicable provisions <br />of this code, an automatic sprinkler system shall be provided in an <br />existing building when an addition occurs and one of the following <br />conditions exists: <br />a. When an addition is 33% or more of the existing building <br />area, and the resulting building area exceeds 5000 square feet <br />(465 m2) as defined in Section 202; or <br />b. When an addition exceeds 2000 square feet (186 m2) and <br />the resulting building area exceeds 5000 square feet (465 m2) <br />as defined in Section 202; or <br />c. An additional story is added above the second floor <br />regardless of fire areas or allowable area. <br />Exception: Group R-3 occupancies shall comply with Section <br />903.2.8. <br />(b) Section 903.3.5.3 Hydraulically calculated systems is hereby added as follows: <br />Ordinance No. NS-3032 <br />Page 17 of 29 <br />