Ch. 17A Special Inspections and Tests — 2025 California Building Code
California Building Code (Title 24, Part 2) · 2025 edition · updated 2026-10-19 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Building Code (Title 24, Part 2) Chapter 17A · Effective January 1, 2026 · Official source: Building Standards Commission
User notes:
About this chapter: Chapter 17A provides a variety of procedures and criteria for testing materials and assemblies, labeling materials and assemblies, and special inspection of structural assemblies. Chapter 17A is applicable to structures regulated by the Division of the State Architect-Structural Safety—including public elementary and secondary schools, community colleges, and state- owned or state-leased essential services buildings (applications listed in Sections 1.9.2.1 [DSA-SS] and 1.9.2.2 [DSA-SS/CC])—and by the Department of Health Care Access and Information/Office of Statewide Hospital Planning and Development—including hospitals and correctional treatment centers (applications listed in Sections 1.10.1 [OSHPD 1] and 1.10.4 [OSHPD 4]).
301.4 Use of shipping containers repurposed as buildings and building components.¶
Use of shipping containers repurposed as buildings and building components is not permitted by the California Building Code (CBC) Section 3115.
1710A.2.2 ICC 1200 Section 503.1. Modify ICC 1200 Section 503.1 by adding the following:
Quality Assurance/Quality Control (QA/QC) shall satisfy all the requirements for Testing, Inspection, and Observation (TIO) in the California Building Standards Code (CBSC).
1710A.3 Regulatory compliance.¶
In addition to other applicable requirements in this code, off-site construction shall be inspected and regulated in accordance with ICC 1205, with texts modified by Sections 1710A.3.1 through 1710A.3.2.
1710A.3.1 ICC 1205 Section 302.1. Modify ICC 1205 Section 302.1 by adding the following:
Construction documents for plan approval shall satisfy all the requirements in the California Building Standards Code (CBSC).
1710A.3.2 ICC 1205 Section 501.1. Modify ICC 1205 Section 501.1 by adding the following:
Testing, Inspection, and Observation (TIO) program shall satisfy all the requirements in the California Building Standards Code (CBSC).
CHAPTER 18 – SOILS AND FOUNDATIONS
(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)
| Adopting agency | BSC | BSC-CG | SFM | HCD 1 | HCD 2 | HCD 1/AC | DSA AC | DSA SS | DSA SS/CC | OSHPD 1 | OSHPD 1R | OSHPD 2 | OSHPD 3 | OSHPD 4 | OSHPD 5 | OSHPD 6 | BSCC | DPH | AGR | DWR | CEC | CA | SL | SLC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adopt entire chapter | X | X | X | |||||||||||||||||||||
| Adopt entire chapter as amended (amended sections listed below) | X | X | X | X | X | |||||||||||||||||||
| Adopt only those sections that are listed below | ||||||||||||||||||||||||
| Chapter / Section | ||||||||||||||||||||||||
| 1801.1.1 – 1801.1.3 | X | X | X | |||||||||||||||||||||
| 1802.1 | X | |||||||||||||||||||||||
| 1803.1 | X | X | X | |||||||||||||||||||||
| 1803.1.1 – 1803.1.1.5 | X | |||||||||||||||||||||||
| 1803.2 | X | X | X | |||||||||||||||||||||
| 1803.3.1 | X | X | X | |||||||||||||||||||||
| 1803.6 | X | X | X | |||||||||||||||||||||
| 1803.7 | X | X | X | |||||||||||||||||||||
| 1804.4.1 | X | |||||||||||||||||||||||
| 1805.2 | X | X | X | |||||||||||||||||||||
| 1805.4.1 | X | |||||||||||||||||||||||
| 1807.1.3 | X | X | X | |||||||||||||||||||||
| 1807.1.4 | X | X | X | |||||||||||||||||||||
| 1807.1.5 | X | X | X | |||||||||||||||||||||
| 1807.1.6 | X | X | X | |||||||||||||||||||||
| 1807.2.2 | X | X | X | |||||||||||||||||||||
| 1808.8 | X | X | X | |||||||||||||||||||||
| Table 1808.8.1 | X | X | X | |||||||||||||||||||||
| 1808.8.6 | X | X | X | |||||||||||||||||||||
| 1809.3 | X | X | X | |||||||||||||||||||||
| 1809.7 | X | X | X | |||||||||||||||||||||
| 1809.8 | X | X | X | |||||||||||||||||||||
| 1809.9 | X | X | X | |||||||||||||||||||||
| 1809.12 | X | X | X | |||||||||||||||||||||
| 1809.15 | X | X | X | |||||||||||||||||||||
| 1810.3.1.5.1 | X | X | X | |||||||||||||||||||||
| 1810.3.2.4 | X | X | X | |||||||||||||||||||||
| 1810.3.3.1.9 | X | X | X | |||||||||||||||||||||
| 1810.3.5.3.3 | X | X | X | |||||||||||||||||||||
| 1810.3.8 | X | X | X | |||||||||||||||||||||
| 1810.3.10.4 | X | |||||||||||||||||||||||
| 1810.3.10.4.1 | X | X | X | |||||||||||||||||||||
| 1810.3.11 | X | X | X | |||||||||||||||||||||
| 1810.3.11.2 | X | X | X | |||||||||||||||||||||
| 1810.4.1.5 | X | X | X | |||||||||||||||||||||
| 1811 – 1813 | X | X | X |
The state agency does not adopt sections identified with the following symbol:
The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
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