11. FIRST READING OF ORDINANCE NO. 1569 AMENDING CHAPTER 1, ARTICLE 8 OF THE TUSTIN CITY CODE TO ADOPT THE 2025 CALIFORNIA BUILDING STANDARDS CODE, RELATED MODEL CODES WITH CERTAIN APPENDICES, AND SUPPLEMENTAL REGULATIONS, AND ADOPTING AMENDMENTS THERETO FOLLOWING A PUBLIC HEARING NOVEMBER 18, 2025 Every three years, the California Building Standards Commission updates and adopts new construction regulations based on internationally published model codes. These regulations are collectively known as the California Code of Regulations Title 24, or more commonly, the California Building Standards Code. State law requires the 2025 California Building Standards Code to be enforced by all California cities effective January 1, 2026. Sections 17958.7 and 18941.5 of the California Health and Safety Code permit local governments to adopt amendments to the California Building Standards Code when they are administrative or procedural in nature, or when local climatic, geological, or topographical conditions warrant more restrictive requirements. These amendments, however, may not be less restrictive than the standards contained in Title 24. To comply with State law, Ordinance No. 1569 is proposed to adopt and amend the 2025 California Building Standards Code, including certain appendices and supplemental regulations. City staff has worked in partnership with the Orange County Fire Authority on relevant supplemental regulations, and Resolution No. 25-53 provides the express findings demonstrating that these amendments are reasonably necessary due to local climatic, geological, and topographical conditions within the City of Tustin.