§ 8-1

The 2025 Edition of the California Administrative Code, as adopted by the California Building Standards Commission in California Code of Regulations Title 24, Part 1, is hereby adopted by reference and made a part of this chapter as if fully set forth at length herein. One (1) copy of said code is on file in the office of the City Clerk for public review. (§ 2, Ord. 3227, eff. January 5, 2023, as amended by § 2, Ord. 3321, eff. February 2026)

The 2025 Edition of the California Building Code, as adopted by the California Building Standards Commission in California Code of Regulations Title 24, Part 2, Volumes 1 and 2, subject to the amendments set forth in this chapter, is hereby adopted by reference and made a part of this chapter as if fully set forth at length herein. One (1) copy of said code is on file in the office of the City Clerk for public review. (§ 1, Ord. 2481, eff. September 20, 1990, as amended by § 1, Ord. 2535, eff. December 31, 1992, § 1, Ord. 2617, eff. July 4, 1996, § 1, Ord. 2691, eff. July 1, 1999, § 2, Ord. 2769, eff. January 16, 2003, § 2, Ord. 2882, eff. January 3, 2008, § 2, Ord. 2928, eff. January 7, 2011, § 2, Ord. 3063, eff. December 15, 2016, § 2, Ord. 3148, eff. December 19, 2019, § 2, Ord. 3227, eff. January 5, 2023, as amended by § 2, Ord. 3321, eff. February 2026)

Sec. 8-1.03. Amendment: Section 113.4.

Section 113.4 is added to the California Building Code to read as follows: 113.4 Ontario Building Appeals Board. The City Manager shall recommend to the City Council five (5) individuals desirous to serve on the Building Appeals Board who are qualified by experience and training to pass on matters pertaining to building construction and are not employees of the City. Each Board Member’s term on the Building Appeals Board shall remain indefinite unless the Board Member resigns, or the City Council wishes to

designate a new Board Member in its discretion. Should any Board Member be unable to continue serving on the Building Appeals Board, he or she shall submit a written resignation to the City Manager as soon as possible. The City Manager shall, in turn, present a recommended replacement to the City Council for appointment. ( § 2, Ord. 3063, eff. December 15, 2016, as amended by § 2, Ord. 3148, eff. December 19, 2019, § 2, Ord. 3227, eff. January 5, 2023, as amended by § 2, Ord. 3321, eff. February 2026)

Sec. 8-1.04. Amendment: Part 2, Volume 1, Section 105.2.

Section 105.2 is amended as follows - All walls over 3 ft (36 inches) require a building permit and all retaining walls over 2 ft (24 inches) require a building permit. (§ 2, Ord. 3227, eff. January 5, 2023, as amended by § 2, Ord. 3321, eff. February 2026)

Sec. 8-1.05. Amendment: Part 2, Volume 2, Section 1609A.

Section 1609A is amended as follows - The City of Ontario design criteria for all structures built within the City is 110 MPH winds, Exposure C, Seismic Zone D. (§ 2, Ord. 3227, eff. January 5, 2023, as amended by § 2, Ord. 3321, eff. February 2026)

Sec. 8-1.06. Amendment: Part 2, Volume 2, Section 1613A.

Section 1613A is amended as follows -

1. The City of Ontario design criteria for all structures built within the City is 110 MPH winds, Exposure C, Seismic Zone D; and
2. Because of the City's proximity to the San Andreas fault, all underground pipe, conduit, and lines will be shaded with cleaned dirt void of any rocks or clean sand, six inches below and twelve inches above said pipe, conduit, or line. All electrical metal conduit will need a ground conductor, the metal conduit will not act as the ground conductor. (§ 2, Ord. 3227, eff. January 5, 2023, as amended by § 2, Ord. 3321, eff. February 2026)

CHAPTER 2: MECHANICAL CODE *

CHAPTER 2: MECHANICAL CODE *

• Chapter 2, consisting of §§ 8-2.01 through 8-2.03, codified from Ord. 1673, eff. December 7, 1967, repealed by Ord. 1755, eff. May 20, 1971. Chapter 2 entitled “Building Code: Mechanical,” consisting of §§ 8-2.01 and 8-2.02, as added by said Ord. 1755, repealed by Ord. 1832, eff. May 16, 1974. Sections 8-2.01 and 8-2.02, as added by said Ord. 1832, repealed by Ord. 2111, eff. December 18, 1980. Sections 8-2.01 and 8-2.02, as added by said Ord. 2111, repealed by Ord. 2335, eff. February 6, 1986. Sections 8-2.01 and 8-2.02, as added by said Ord. 2335, repealed by Ord. 2416, eff. April 14, 1988, as added by said Ord. 2416, repealed by Ord. 2481, eff. September 20, 1990, as amended by § 3, Ord. 2769, eff. January 16, 2003, as amended by § 3, Ord. 3321, effective February 19, 2026. 8-2.01 Adoption of the Mechanical Code